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  • 做的是canvas的项目,在自己电脑上运行的时候,发现,会出现点击选不中的问题还有,canvas刷新会有残影问题。首先可以确定,这两个问题都是canvas元素边界有问题,但是从代码上来看是没问题的,因此我就猜测是否和...
  • 最近公司项目需要,利用vue实现pdf导出,从而保存到本地打印出来,说起来好像也很容易,具体要怎么实现呢? 1 、我们要添加两个模块 1 第一个.... import html2Canvas from 'html2canvas' import
  • 在做canvas插入文本框+截图功能的时候使用 html2canvas, 出现保存的图片模糊的问题。 搜了很多帖子,都有略微差别,有的改了源码也不说 = =, 最后找到可用的,清晰度很高的。保存一下。 下面是例子 let targetDom...

    在做canvas插入文本框+截图功能的时候使用 html2canvas, 出现保存的图片模糊的问题。
    搜了很多帖子,都有略微差别,有的改了源码也不说 = =,
    最后找到可用的,清晰度很高的。保存一下。
    下面是例子

     let targetDom = document.getElementById('content')
            let targetWidth = targetDom.offsetWidth
            let targetHeight = targetDom.offsetHeight
            let canvas = document.createElement('canvas')
            let scale = window.devicePixelRatio
            canvas.width = targetWidth * scale
            canvas.height = targetHeight * scale
            canvas.style.width = targetWidth * scale + 'px'
            canvas.style.height = targetHeight * scale + 'px'
            canvas.getContext('2d').scale(scale, scale)
            html2canvas(targetDom, {
              allowTaint: false,
              scale,
              canvas,
              logging: false,
              useCORS: true,
              width: targetWidth,
              height: targetHeight,
              ignoreElements: (element) => {
                if (element.id === 'printHide') {
                  return true
                }
              }
            }).then(canvas => {
              this.cachePatinUrl = canvas.toDataURL('image/jpeg', 1.0)
              this.cacheHeight = canvas.height
              this.cacheWidth = canvas.width
            })
    

    在这里插入图片描述
    很清晰。

    展开全文
  • 解决html2canvas图片模糊问题,必须使用此版本
  • Canvas模糊圆点背景动画特效是一款html5基于canvas绘制带有透明圆点的模糊背景动画特效。
  • 主要介绍了HTML5 Canvas图像模糊完美解决办法,需要的朋友可以参考下
  • html5 canvas模糊圆点粒子炫酷背景动画特效,全屏圆点悬浮背景动画,鼠标点击页面可以加速运动效果哦。
  • HTML5 Canvas模糊粒子背景特效是一款绿色发光的粒子背景模糊动画特效。
  • canvas实现模糊效果

    2016-01-30 11:19:18
    css3实现图片模糊canvas实现交互设计,简单,简单,简单,简单,简单,简单单
  • HTML5 Canvas模糊圆点粒子背景动画特效是一款运动比较柔和的网页背景动画,模糊虚幻圆点缓缓浮动的效果。
  • Canvas模糊圆点背景动画特效是一款html5基于canvas绘制带有透明圆点的模糊背景动画特效。
  • HTML5 Canvas模糊粒子背景特效是一款绿色发光的粒子背景模糊动画特效。
  • vue实现pdf导出,解决生成canvas模糊等问题

    vue实现pdf导出,解决生成canvas模糊等问题

    参考文章:

    (1)vue实现pdf导出,解决生成canvas模糊等问题

    (2)https://www.cnblogs.com/jsonYoung/p/9806903.html


    备忘一下。


    展开全文
  • 代码片段: while( count-- ) { var radius = rand( opt.radiusMin, opt.radiusMax ), blur = rand( opt.blurMin, opt.blurMax ), ... saturation = rand( opt.saturationMin, opt.saturationMax ), ...
  • Canvas模糊圆点背景动画特效是一款html5基于canvas绘制带有透明圆点的模糊背景动画特效。
  • 本文主要介绍了canvas绘图不清晰的解决方案,具有很好的参考价值,下面跟着小编一起来看下吧
  • 主要为大家详细介绍了js canvas画布实现高斯模糊效果,具有一定的参考价值,感兴趣的小伙伴们可以参考一下
  • 解决canvas绘图模糊问题

    千次阅读 2019-08-20 15:57:10
    canvas 绘图时,会从两个物理像素的中间位置开始绘制并向两边扩散 0.5 个物理像素。当设备像素比为 1 时,一个 1px 的线条实际上占据了两个物理像素(每个像素实际上只占一半),由于不存在 0.5 个像素,所以这两个...

    先说下为什么会出现模糊的现象

    canvas 绘图时,会从两个物理像素的中间位置开始绘制并向两边扩散 0.5 个物理像素。当设备像素比为 1 时,一个 1px 的线条实际上占据了两个物理像素(每个像素实际上只占一半),由于不存在 0.5 个像素,所以这两个像素本来不应该被绘制的部分也被绘制了,于是 1 物理像素的线条变成了 2 物理像素,视觉上就造成了模糊

    我们怎么解决呢
    我们可以把画布的宽和高设置为原来的两倍,也就是像素比为2

    <canvas id="canvas" width="400" height="400"></canvas>
    <style>
    	canvas {
    	    width: 200px;
    	    height: 200px;
    	}
    </style>
    

    标签的width和height指的(绘图区域)的宽高
    这样我们绘制一个矩形的时候100100
    实际我们看到的可能只有50
    50
    这是因为我们在400*400的画布上画的

    下一步,我们需要将 canvas 的绘图区域扩大一倍(因为 devicePixelRatio = 2),这样才能让视觉上的效果正常:

    ctx.scale(2, 2)
    ctx.strokeStyle = '#000'
    ctx.lineWidth = 1
    ctx.strokeRect(10, 10, 100, 100)
    

    这样我们画出的矩形就很清晰

    展开全文
  • 1、把以下代码存储为html2canvas.js/* html2canvas 0.5.0-beta3 <http://html2canvas.hertzen.com> Copyright (c) 2016 Niklas von Hertzen Released under License */!function(e){if("object"==typeof exports&...

    1、把以下代码存储为html2canvas.js

    /*
     html2canvas 0.5.0-beta3 <http://html2canvas.hertzen.com>
     Copyright (c) 2016 Niklas von Hertzen
    
     Released under  License
     */
    
    !function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.html2canvas=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
      (function (global){
        /*! http://mths.be/punycode v1.2.4 by @mathias */
        ;(function(root) {
    
          /** Detect free variables */
          var freeExports = typeof exports == 'object' && exports;
          var freeModule = typeof module == 'object' && module &&
            module.exports == freeExports && module;
          var freeGlobal = typeof global == 'object' && global;
          if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
            root = freeGlobal;
          }
    
          /**
           * The `punycode` object.
           * @name punycode
           * @type Object
           */
          var punycode,
    
            /** Highest positive signed 32-bit float value */
            maxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1
    
            /** Bootstring parameters */
            base = 36,
            tMin = 1,
            tMax = 26,
            skew = 38,
            damp = 700,
            initialBias = 72,
            initialN = 128, // 0x80
            delimiter = '-', // '\x2D'
    
            /** Regular expressions */
            regexPunycode = /^xn--/,
            regexNonASCII = /[^ -~]/, // unprintable ASCII chars + non-ASCII chars
            regexSeparators = /\x2E|\u3002|\uFF0E|\uFF61/g, // RFC 3490 separators
    
            /** Error messages */
            errors = {
              'overflow': 'Overflow: input needs wider integers to process',
              'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
              'invalid-input': 'Invalid input'
            },
    
            /** Convenience shortcuts */
            baseMinusTMin = base - tMin,
            floor = Math.floor,
            stringFromCharCode = String.fromCharCode,
    
            /** Temporary variable */
            key;
    
          /*--------------------------------------------------------------------------*/
    
          /**
           * A generic error utility function.
           * @private
           * @param {String} type The error type.
           * @returns {Error} Throws a `RangeError` with the applicable error message.
           */
          function error(type) {
            throw RangeError(errors[type]);
          }
    
          /**
           * A generic `Array#map` utility function.
           * @private
           * @param {Array} array The array to iterate over.
           * @param {Function} callback The function that gets called for every array
           * item.
           * @returns {Array} A new array of values returned by the callback function.
           */
          function map(array, fn) {
            var length = array.length;
            while (length--) {
              array[length] = fn(array[length]);
            }
            return array;
          }
    
          /**
           * A simple `Array#map`-like wrapper to work with domain name strings.
           * @private
           * @param {String} domain The domain name.
           * @param {Function} callback The function that gets called for every
           * character.
           * @returns {Array} A new string of characters returned by the callback
           * function.
           */
          function mapDomain(string, fn) {
            return map(string.split(regexSeparators), fn).join('.');
          }
    
          /**
           * Creates an array containing the numeric code points of each Unicode
           * character in the string. While JavaScript uses UCS-2 internally,
           * this function will convert a pair of surrogate halves (each of which
           * UCS-2 exposes as separate characters) into a single code point,
           * matching UTF-16.
           * @see `punycode.ucs2.encode`
           * @see <http://mathiasbynens.be/notes/javascript-encoding>
           * @memberOf punycode.ucs2
           * @name decode
           * @param {String} string The Unicode input string (UCS-2).
           * @returns {Array} The new array of code points.
           */
          function ucs2decode(string) {
            var output = [],
              counter = 0,
              length = string.length,
              value,
              extra;
            while (counter < length) {
              value = string.charCodeAt(counter++);
              if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
                // high surrogate, and there is a next character
                extra = string.charCodeAt(counter++);
                if ((extra & 0xFC00) == 0xDC00) { // low surrogate
                  output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
                } else {
                  // unmatched surrogate; only append this code unit, in case the next
                  // code unit is the high surrogate of a surrogate pair
                  output.push(value);
                  counter--;
                }
              } else {
                output.push(value);
              }
            }
            return output;
          }
    
          /**
           * Creates a string based on an array of numeric code points.
           * @see `punycode.ucs2.decode`
           * @memberOf punycode.ucs2
           * @name encode
           * @param {Array} codePoints The array of numeric code points.
           * @returns {String} The new Unicode string (UCS-2).
           */
          function ucs2encode(array) {
            return map(array, function(value) {
              var output = '';
              if (value > 0xFFFF) {
                value -= 0x10000;
                output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
                value = 0xDC00 | value & 0x3FF;
              }
              output += stringFromCharCode(value);
              return output;
            }).join('');
          }
    
          /**
           * Converts a basic code point into a digit/integer.
           * @see `digitToBasic()`
           * @private
           * @param {Number} codePoint The basic numeric code point value.
           * @returns {Number} The numeric value of a basic code point (for use in
           * representing integers) in the range `0` to `base - 1`, or `base` if
           * the code point does not represent a value.
           */
          function basicToDigit(codePoint) {
            if (codePoint - 48 < 10) {
              return codePoint - 22;
            }
            if (codePoint - 65 < 26) {
              return codePoint - 65;
            }
            if (codePoint - 97 < 26) {
              return codePoint - 97;
            }
            return base;
          }
    
          /**
           * Converts a digit/integer into a basic code point.
           * @see `basicToDigit()`
           * @private
           * @param {Number} digit The numeric value of a basic code point.
           * @returns {Number} The basic code point whose value (when used for
           * representing integers) is `digit`, which needs to be in the range
           * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
           * used; else, the lowercase form is used. The behavior is undefined
           * if `flag` is non-zero and `digit` has no uppercase form.
           */
          function digitToBasic(digit, flag) {
            //  0..25 map to ASCII a..z or A..Z
            // 26..35 map to ASCII 0..9
            return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
          }
    
          /**
           * Bias adaptation function as per section 3.4 of RFC 3492.
           * http://tools.ietf.org/html/rfc3492#section-3.4
           * @private
           */
          function adapt(delta, numPoints, firstTime) {
            var k = 0;
            delta = firstTime ? floor(delta / damp) : delta >> 1;
            delta += floor(delta / numPoints);
            for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) {
              delta = floor(delta / baseMinusTMin);
            }
            return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
          }
    
          /**
           * Converts a Punycode string of ASCII-only symbols to a string of Unicode
           * symbols.
           * @memberOf punycode
           * @param {String} input The Punycode string of ASCII-only symbols.
           * @returns {String} The resulting string of Unicode symbols.
           */
          function decode(input) {
            // Don't use UCS-2
            var output = [],
              inputLength = input.length,
              out,
              i = 0,
              n = initialN,
              bias = initialBias,
              basic,
              j,
              index,
              oldi,
              w,
              k,
              digit,
              t,
              /** Cached calculation results */
              baseMinusT;
    
            // Handle the basic code points: let `basic` be the number of input code
            // points before the last delimiter, or `0` if there is none, then copy
            // the first basic code points to the output.
    
            basic = input.lastIndexOf(delimiter);
            if (basic < 0) {
              basic = 0;
            }
    
            for (j = 0; j < basic; ++j) {
              // if it's not a basic code point
              if (input.charCodeAt(j) >= 0x80) {
                error('not-basic');
              }
              output.push(input.charCodeAt(j));
            }
    
            // Main decoding loop: start just after the last delimiter if any basic code
            // points were copied; start at the beginning otherwise.
    
            for (index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) {
    
              // `index` is the index of the next character to be consumed.
              // Decode a generalized variable-length integer into `delta`,
              // which gets added to `i`. The overflow checking is easier
              // if we increase `i` as we go, then subtract off its starting
              // value at the end to obtain `delta`.
              for (oldi = i, w = 1, k = base; /* no condition */; k += base) {
    
                if (index >= inputLength) {
                  error('invalid-input');
                }
    
                digit = basicToDigit(input.charCodeAt(index++));
    
                if (digit >= base || digit > floor((maxInt - i) / w)) {
                  error('overflow');
                }
    
                i += digit * w;
                t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
    
                if (digit < t) {
                  break;
                }
    
                baseMinusT = base - t;
                if (w > floor(maxInt / baseMinusT)) {
                  error('overflow');
                }
    
                w *= baseMinusT;
    
              }
    
              out = output.length + 1;
              bias = adapt(i - oldi, out, oldi == 0);
    
              // `i` was supposed to wrap around from `out` to `0`,
              // incrementing `n` each time, so we'll fix that now:
              if (floor(i / out) > maxInt - n) {
                error('overflow');
              }
    
              n += floor(i / out);
              i %= out;
    
              // Insert `n` at position `i` of the output
              output.splice(i++, 0, n);
    
            }
    
            return ucs2encode(output);
          }
    
          /**
           * Converts a string of Unicode symbols to a Punycode string of ASCII-only
           * symbols.
           * @memberOf punycode
           * @param {String} input The string of Unicode symbols.
           * @returns {String} The resulting Punycode string of ASCII-only symbols.
           */
          function encode(input) {
            var n,
              delta,
              handledCPCount,
              basicLength,
              bias,
              j,
              m,
              q,
              k,
              t,
              currentValue,
              output = [],
              /** `inputLength` will hold the number of code points in `input`. */
              inputLength,
              /** Cached calculation results */
              handledCPCountPlusOne,
              baseMinusT,
              qMinusT;
    
            // Convert the input in UCS-2 to Unicode
            input = ucs2decode(input);
    
            // Cache the length
            inputLength = input.length;
    
            // Initialize the state
            n = initialN;
            delta = 0;
            bias = initialBias;
    
            // Handle the basic code points
            for (j = 0; j < inputLength; ++j) {
              currentValue = input[j];
              if (currentValue < 0x80) {
                output.push(stringFromCharCode(currentValue));
              }
            }
    
            handledCPCount = basicLength = output.length;
    
            // `handledCPCount` is the number of code points that have been handled;
            // `basicLength` is the number of basic code points.
    
            // Finish the basic string - if it is not empty - with a delimiter
            if (basicLength) {
              output.push(delimiter);
            }
    
            // Main encoding loop:
            while (handledCPCount < inputLength) {
    
              // All non-basic code points < n have been handled already. Find the next
              // larger one:
              for (m = maxInt, j = 0; j < inputLength; ++j) {
                currentValue = input[j];
                if (currentValue >= n && currentValue < m) {
                  m = currentValue;
                }
              }
    
              // Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
              // but guard against overflow
              handledCPCountPlusOne = handledCPCount + 1;
              if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
                error('overflow');
              }
    
              delta += (m - n) * handledCPCountPlusOne;
              n = m;
    
              for (j = 0; j < inputLength; ++j) {
                currentValue = input[j];
    
                if (currentValue < n && ++delta > maxInt) {
                  error('overflow');
                }
    
                if (currentValue == n) {
                  // Represent delta as a generalized variable-length integer
                  for (q = delta, k = base; /* no condition */; k += base) {
                    t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
                    if (q < t) {
                      break;
                    }
                    qMinusT = q - t;
                    baseMinusT = base - t;
                    output.push(
                      stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0))
                    );
                    q = floor(qMinusT / baseMinusT);
                  }
    
                  output.push(stringFromCharCode(digitToBasic(q, 0)));
                  bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);
                  delta = 0;
                  ++handledCPCount;
                }
              }
    
              ++delta;
              ++n;
    
            }
            return output.join('');
          }
    
          /**
           * Converts a Punycode string representing a domain name to Unicode. Only the
           * Punycoded parts of the domain name will be converted, i.e. it doesn't
           * matter if you call it on a string that has already been converted to
           * Unicode.
           * @memberOf punycode
           * @param {String} domain The Punycode domain name to convert to Unicode.
           * @returns {String} The Unicode representation of the given Punycode
           * string.
           */
          function toUnicode(domain) {
            return mapDomain(domain, function(string) {
              return regexPunycode.test(string)
                ? decode(string.slice(4).toLowerCase())
                : string;
            });
          }
    
          /**
           * Converts a Unicode string representing a domain name to Punycode. Only the
           * non-ASCII parts of the domain name will be converted, i.e. it doesn't
           * matter if you call it with a domain that's already in ASCII.
           * @memberOf punycode
           * @param {String} domain The domain name to convert, as a Unicode string.
           * @returns {String} The Punycode representation of the given domain name.
           */
          function toASCII(domain) {
            return mapDomain(domain, function(string) {
              return regexNonASCII.test(string)
                ? 'xn--' + encode(string)
                : string;
            });
          }
    
          /*--------------------------------------------------------------------------*/
    
          /** Define the public API */
          punycode = {
            /**
             * A string representing the current Punycode.js version number.
             * @memberOf punycode
             * @type String
             */
            'version': '1.2.4',
            /**
             * An object of methods to convert from JavaScript's internal character
             * representation (UCS-2) to Unicode code points, and back.
             * @see <http://mathiasbynens.be/notes/javascript-encoding>
             * @memberOf punycode
             * @type Object
             */
            'ucs2': {
              'decode': ucs2decode,
              'encode': ucs2encode
            },
            'decode': decode,
            'encode': encode,
            'toASCII': toASCII,
            'toUnicode': toUnicode
          };
    
          /** Expose `punycode` */
          // Some AMD build optimizers, like r.js, check for specific condition patterns
          // like the following:
          if (
            typeof define == 'function' &&
            typeof define.amd == 'object' &&
            define.amd
          ) {
            define('punycode', function() {
              return punycode;
            });
          } else if (freeExports && !freeExports.nodeType) {
            if (freeModule) { // in Node.js or RingoJS v0.8.0+
              freeModule.exports = punycode;
            } else { // in Narwhal or RingoJS v0.7.0-
              for (key in punycode) {
                punycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]);
              }
            }
          } else { // in Rhino or a web browser
            root.punycode = punycode;
          }
    
        }(this));
    
      }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
    },{}],2:[function(_dereq_,module,exports){
      var log = _dereq_('./log');
    
      function restoreOwnerScroll(ownerDocument, x, y) {
        if (ownerDocument.defaultView && (x !== ownerDocument.defaultView.pageXOffset || y !== ownerDocument.defaultView.pageYOffset)) {
          ownerDocument.defaultView.scrollTo(x, y);
        }
      }
    
      function cloneCanvasContents(canvas, clonedCanvas) {
        try {
          if (clonedCanvas) {
            clonedCanvas.width = canvas.width;
            clonedCanvas.height = canvas.height;
            clonedCanvas.getContext("2d").putImageData(canvas.getContext("2d").getImageData(0, 0, canvas.width, canvas.height), 0, 0);
          }
        } catch(e) {
          log("Unable to copy canvas content from", canvas, e);
        }
      }
    
      function cloneNode(node, javascriptEnabled) {
        var clone = node.nodeType === 3 ? document.createTextNode(node.nodeValue) : node.cloneNode(false);
    
        var child = node.firstChild;
        while(child) {
          if (javascriptEnabled === true || child.nodeType !== 1 || child.nodeName !== 'SCRIPT') {
            clone.appendChild(cloneNode(child, javascriptEnabled));
          }
          child = child.nextSibling;
        }
    
        if (node.nodeType === 1) {
          clone._scrollTop = node.scrollTop;
          clone._scrollLeft = node.scrollLeft;
          if (node.nodeName === "CANVAS") {
            cloneCanvasContents(node, clone);
          } else if (node.nodeName === "TEXTAREA" || node.nodeName === "SELECT") {
            clone.value = node.value;
          }
        }
    
        return clone;
      }
    
      function initNode(node) {
        if (node.nodeType === 1) {
          node.scrollTop = node._scrollTop;
          node.scrollLeft = node._scrollLeft;
    
          var child = node.firstChild;
          while(child) {
            initNode(child);
            child = child.nextSibling;
          }
        }
      }
    
      module.exports = function(ownerDocument, containerDocument, width, height, options, x ,y) {
        var documentElement = cloneNode(ownerDocument.documentElement, options.javascriptEnabled);
        var container = containerDocument.createElement("iframe");
    
        container.className = "html2canvas-container";
        container.style.visibility = "hidden";
        container.style.position = "fixed";
        container.style.left = "-10000px";
        container.style.top = "0px";
        container.style.border = "0";
        container.width = width;
        container.height = height;
        container.scrolling = "no"; // ios won't scroll without it
        containerDocument.body.appendChild(container);
    
        return new Promise(function(resolve) {
          var documentClone = container.contentWindow.document;
    
          /* Chrome doesn't detect relative background-images assigned in inline <style> sheets when fetched through getComputedStyle
           if window url is about:blank, we can assign the url to current by writing onto the document
           */
          container.contentWindow.onload = container.onload = function() {
            var interval = setInterval(function() {
              if (documentClone.body.childNodes.length > 0) {
                initNode(documentClone.documentElement);
                clearInterval(interval);
                if (options.type === "view") {
                  container.contentWindow.scrollTo(x, y);
                  if ((/(iPad|iPhone|iPod)/g).test(navigator.userAgent) && (container.contentWindow.scrollY !== y || container.contentWindow.scrollX !== x)) {
                    documentClone.documentElement.style.top = (-y) + "px";
                    documentClone.documentElement.style.left = (-x) + "px";
                    documentClone.documentElement.style.position = 'absolute';
                  }
                }
                resolve(container);
              }
            }, 50);
          };
    
          documentClone.open();
          documentClone.write("<!DOCTYPE html><html></html>");
          // Chrome scrolls the parent document for some reason after the write to the cloned window???
          restoreOwnerScroll(ownerDocument, x, y);
          documentClone.replaceChild(documentClone.adoptNode(documentElement), documentClone.documentElement);
          documentClone.close();
        });
      };
    
    },{"./log":13}],3:[function(_dereq_,module,exports){
    // http://dev.w3.org/csswg/css-color/
    
      function Color(value) {
        this.r = 0;
        this.g = 0;
        this.b = 0;
        this.a = null;
        var result = this.fromArray(value) ||
          this.namedColor(value) ||
          this.rgb(value) ||
          this.rgba(value) ||
          this.hex6(value) ||
          this.hex3(value);
      }
    
      Color.prototype.darken = function(amount) {
        var a = 1 - amount;
        return  new Color([
          Math.round(this.r * a),
          Math.round(this.g * a),
          Math.round(this.b * a),
          this.a
        ]);
      };
    
      Color.prototype.isTransparent = function() {
        return this.a === 0;
      };
    
      Color.prototype.isBlack = function() {
        return this.r === 0 && this.g === 0 && this.b === 0;
      };
    
      Color.prototype.fromArray = function(array) {
        if (Array.isArray(array)) {
          this.r = Math.min(array[0], 255);
          this.g = Math.min(array[1], 255);
          this.b = Math.min(array[2], 255);
          if (array.length > 3) {
            this.a = array[3];
          }
        }
    
        return (Array.isArray(array));
      };
    
      var _hex3 = /^#([a-f0-9]{3})$/i;
    
      Color.prototype.hex3 = function(value) {
        var match = null;
        if ((match = value.match(_hex3)) !== null) {
          this.r = parseInt(match[1][0] + match[1][0], 16);
          this.g = parseInt(match[1][1] + match[1][1], 16);
          this.b = parseInt(match[1][2] + match[1][2], 16);
        }
        return match !== null;
      };
    
      var _hex6 = /^#([a-f0-9]{6})$/i;
    
      Color.prototype.hex6 = function(value) {
        var match = null;
        if ((match = value.match(_hex6)) !== null) {
          this.r = parseInt(match[1].substring(0, 2), 16);
          this.g = parseInt(match[1].substring(2, 4), 16);
          this.b = parseInt(match[1].substring(4, 6), 16);
        }
        return match !== null;
      };
    
    
      var _rgb = /^rgb\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*\)$/;
    
      Color.prototype.rgb = function(value) {
        var match = null;
        if ((match = value.match(_rgb)) !== null) {
          this.r = Number(match[1]);
          this.g = Number(match[2]);
          this.b = Number(match[3]);
        }
        return match !== null;
      };
    
      var _rgba = /^rgba\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d?\.?\d+)\s*\)$/;
    
      Color.prototype.rgba = function(value) {
        var match = null;
        if ((match = value.match(_rgba)) !== null) {
          this.r = Number(match[1]);
          this.g = Number(match[2]);
          this.b = Number(match[3]);
          this.a = Number(match[4]);
        }
        return match !== null;
      };
    
      Color.prototype.toString = function() {
        return this.a !== null && this.a !== 1 ?
          "rgba(" + [this.r, this.g, this.b, this.a].join(",") + ")" :
          "rgb(" + [this.r, this.g, this.b].join(",") + ")";
      };
    
      Color.prototype.namedColor = function(value) {
        value = value.toLowerCase();
        var color = colors[value];
        if (color) {
          this.r = color[0];
          this.g = color[1];
          this.b = color[2];
        } else if (value === "transparent") {
          this.r = this.g = this.b = this.a = 0;
          return true;
        }
    
        return !!color;
      };
    
      Color.prototype.isColor = true;
    
    // JSON.stringify([].slice.call($$('.named-color-table tr'), 1).map(function(row) { return [row.childNodes[3].textContent, row.childNodes[5].textContent.trim().split(",").map(Number)] }).reduce(function(data, row) {data[row[0]] = row[1]; return data}, {}))
      var colors = {
        "aliceblue": [240, 248, 255],
        "antiquewhite": [250, 235, 215],
        "aqua": [0, 255, 255],
        "aquamarine": [127, 255, 212],
        "azure": [240, 255, 255],
        "beige": [245, 245, 220],
        "bisque": [255, 228, 196],
        "black": [0, 0, 0],
        "blanchedalmond": [255, 235, 205],
        "blue": [0, 0, 255],
        "blueviolet": [138, 43, 226],
        "brown": [165, 42, 42],
        "burlywood": [222, 184, 135],
        "cadetblue": [95, 158, 160],
        "chartreuse": [127, 255, 0],
        "chocolate": [210, 105, 30],
        "coral": [255, 127, 80],
        "cornflowerblue": [100, 149, 237],
        "cornsilk": [255, 248, 220],
        "crimson": [220, 20, 60],
        "cyan": [0, 255, 255],
        "darkblue": [0, 0, 139],
        "darkcyan": [0, 139, 139],
        "darkgoldenrod": [184, 134, 11],
        "darkgray": [169, 169, 169],
        "darkgreen": [0, 100, 0],
        "darkgrey": [169, 169, 169],
        "darkkhaki": [189, 183, 107],
        "darkmagenta": [139, 0, 139],
        "darkolivegreen": [85, 107, 47],
        "darkorange": [255, 140, 0],
        "darkorchid": [153, 50, 204],
        "darkred": [139, 0, 0],
        "darksalmon": [233, 150, 122],
        "darkseagreen": [143, 188, 143],
        "darkslateblue": [72, 61, 139],
        "darkslategray": [47, 79, 79],
        "darkslategrey": [47, 79, 79],
        "darkturquoise": [0, 206, 209],
        "darkviolet": [148, 0, 211],
        "deeppink": [255, 20, 147],
        "deepskyblue": [0, 191, 255],
        "dimgray": [105, 105, 105],
        "dimgrey": [105, 105, 105],
        "dodgerblue": [30, 144, 255],
        "firebrick": [178, 34, 34],
        "floralwhite": [255, 250, 240],
        "forestgreen": [34, 139, 34],
        "fuchsia": [255, 0, 255],
        "gainsboro": [220, 220, 220],
        "ghostwhite": [248, 248, 255],
        "gold": [255, 215, 0],
        "goldenrod": [218, 165, 32],
        "gray": [128, 128, 128],
        "green": [0, 128, 0],
        "greenyellow": [173, 255, 47],
        "grey": [128, 128, 128],
        "honeydew": [240, 255, 240],
        "hotpink": [255, 105, 180],
        "indianred": [205, 92, 92],
        "indigo": [75, 0, 130],
        "ivory": [255, 255, 240],
        "khaki": [240, 230, 140],
        "lavender": [230, 230, 250],
        "lavenderblush": [255, 240, 245],
        "lawngreen": [124, 252, 0],
        "lemonchiffon": [255, 250, 205],
        "lightblue": [173, 216, 230],
        "lightcoral": [240, 128, 128],
        "lightcyan": [224, 255, 255],
        "lightgoldenrodyellow": [250, 250, 210],
        "lightgray": [211, 211, 211],
        "lightgreen": [144, 238, 144],
        "lightgrey": [211, 211, 211],
        "lightpink": [255, 182, 193],
        "lightsalmon": [255, 160, 122],
        "lightseagreen": [32, 178, 170],
        "lightskyblue": [135, 206, 250],
        "lightslategray": [119, 136, 153],
        "lightslategrey": [119, 136, 153],
        "lightsteelblue": [176, 196, 222],
        "lightyellow": [255, 255, 224],
        "lime": [0, 255, 0],
        "limegreen": [50, 205, 50],
        "linen": [250, 240, 230],
        "magenta": [255, 0, 255],
        "maroon": [128, 0, 0],
        "mediumaquamarine": [102, 205, 170],
        "mediumblue": [0, 0, 205],
        "mediumorchid": [186, 85, 211],
        "mediumpurple": [147, 112, 219],
        "mediumseagreen": [60, 179, 113],
        "mediumslateblue": [123, 104, 238],
        "mediumspringgreen": [0, 250, 154],
        "mediumturquoise": [72, 209, 204],
        "mediumvioletred": [199, 21, 133],
        "midnightblue": [25, 25, 112],
        "mintcream": [245, 255, 250],
        "mistyrose": [255, 228, 225],
        "moccasin": [255, 228, 181],
        "navajowhite": [255, 222, 173],
        "navy": [0, 0, 128],
        "oldlace": [253, 245, 230],
        "olive": [128, 128, 0],
        "olivedrab": [107, 142, 35],
        "orange": [255, 165, 0],
        "orangered": [255, 69, 0],
        "orchid": [218, 112, 214],
        "palegoldenrod": [238, 232, 170],
        "palegreen": [152, 251, 152],
        "paleturquoise": [175, 238, 238],
        "palevioletred": [219, 112, 147],
        "papayawhip": [255, 239, 213],
        "peachpuff": [255, 218, 185],
        "peru": [205, 133, 63],
        "pink": [255, 192, 203],
        "plum": [221, 160, 221],
        "powderblue": [176, 224, 230],
        "purple": [128, 0, 128],
        "rebeccapurple": [102, 51, 153],
        "red": [255, 0, 0],
        "rosybrown": [188, 143, 143],
        "royalblue": [65, 105, 225],
        "saddlebrown": [139, 69, 19],
        "salmon": [250, 128, 114],
        "sandybrown": [244, 164, 96],
        "seagreen": [46, 139, 87],
        "seashell": [255, 245, 238],
        "sienna": [160, 82, 45],
        "silver": [192, 192, 192],
        "skyblue": [135, 206, 235],
        "slateblue": [106, 90, 205],
        "slategray": [112, 128, 144],
        "slategrey": [112, 128, 144],
        "snow": [255, 250, 250],
        "springgreen": [0, 255, 127],
        "steelblue": [70, 130, 180],
        "tan": [210, 180, 140],
        "teal": [0, 128, 128],
        "thistle": [216, 191, 216],
        "tomato": [255, 99, 71],
        "turquoise": [64, 224, 208],
        "violet": [238, 130, 238],
        "wheat": [245, 222, 179],
        "white": [255, 255, 255],
        "whitesmoke": [245, 245, 245],
        "yellow": [255, 255, 0],
        "yellowgreen": [154, 205, 50]
      };
    
      module.exports = Color;
    
    },{}],4:[function(_dereq_,module,exports){
      var Support = _dereq_('./support');
      var CanvasRenderer = _dereq_('./renderers/canvas');
      var ImageLoader = _dereq_('./imageloader');
      var NodeParser = _dereq_('./nodeparser');
      var NodeContainer = _dereq_('./nodecontainer');
      var log = _dereq_('./log');
      var utils = _dereq_('./utils');
      var createWindowClone = _dereq_('./clone');
      var loadUrlDocument = _dereq_('./proxy').loadUrlDocument;
      var getBounds = utils.getBounds;
    
      var html2canvasNodeAttribute = "data-html2canvas-node";
      var html2canvasCloneIndex = 0;
    
      function html2canvas(nodeList, options) {
        var index = html2canvasCloneIndex++;
        options = options || {};
        if (options.logging) {
          log.options.logging = true;
          log.options.start = Date.now();
        }
    
        options.async = typeof(options.async) === "undefined" ? true : options.async;
        options.allowTaint = typeof(options.allowTaint) === "undefined" ? false : options.allowTaint;
        options.removeContainer = typeof(options.removeContainer) === "undefined" ? true : options.removeContainer;
        options.javascriptEnabled = typeof(options.javascriptEnabled) === "undefined" ? false : options.javascriptEnabled;
        options.imageTimeout = typeof(options.imageTimeout) === "undefined" ? 10000 : options.imageTimeout;
        options.renderer = typeof(options.renderer) === "function" ? options.renderer : CanvasRenderer;
        options.strict = !!options.strict;
    
        if (typeof(nodeList) === "string") {
          if (typeof(options.proxy) !== "string") {
            return Promise.reject("Proxy must be used when rendering url");
          }
          var width = options.width != null ? options.width : window.innerWidth;
          var height = options.height != null ? options.height : window.innerHeight;
          return loadUrlDocument(absoluteUrl(nodeList), options.proxy, document, width, height, options).then(function(container) {
            return renderWindow(container.contentWindow.document.documentElement, container, options, width, height);
          });
        }
    
        var node = ((nodeList === undefined) ? [document.documentElement] : ((nodeList.length) ? nodeList : [nodeList]))[0];
        node.setAttribute(html2canvasNodeAttribute + index, index);
        return renderDocument(node.ownerDocument, options, node.ownerDocument.defaultView.innerWidth, node.ownerDocument.defaultView.innerHeight, index).then(function(canvas) {
          if (typeof(options.onrendered) === "function") {
            log("options.onrendered is deprecated, html2canvas returns a Promise containing the canvas");
            options.onrendered(canvas);
          }
          return canvas;
        });
      }
    
      html2canvas.CanvasRenderer = CanvasRenderer;
      html2canvas.NodeContainer = NodeContainer;
      html2canvas.log = log;
      html2canvas.utils = utils;
    
      var html2canvasExport = (typeof(document) === "undefined" || typeof(Object.create) !== "function" || typeof(document.createElement("canvas").getContext) !== "function") ? function() {
          return Promise.reject("No canvas support");
        } : html2canvas;
    
      module.exports = html2canvasExport;
    
      if (typeof(define) === 'function' && define.amd) {
        define('html2canvas', [], function() {
          return html2canvasExport;
        });
      }
    
      function renderDocument(document, options, windowWidth, windowHeight, html2canvasIndex) {
        return createWindowClone(document, document, windowWidth, windowHeight, options, document.defaultView.pageXOffset, document.defaultView.pageYOffset).then(function(container) {
          log("Document cloned");
          var attributeName = html2canvasNodeAttribute + html2canvasIndex;
          var selector = "[" + attributeName + "='" + html2canvasIndex + "']";
          document.querySelector(selector).removeAttribute(attributeName);
          var clonedWindow = container.contentWindow;
          var node = clonedWindow.document.querySelector(selector);
          var oncloneHandler = (typeof(options.onclone) === "function") ? Promise.resolve(options.onclone(clonedWindow.document)) : Promise.resolve(true);
          return oncloneHandler.then(function() {
            return renderWindow(node, container, options, windowWidth, windowHeight);
          });
        });
      }
    
      function renderWindow(node, container, options, windowWidth, windowHeight) {
        var clonedWindow = container.contentWindow;
        var support = new Support(clonedWindow.document);
        var imageLoader = new ImageLoader(options, support);
        var bounds = getBounds(node);
        var width = options.type === "view" ? windowWidth : documentWidth(clonedWindow.document);
        var height = options.type === "view" ? windowHeight : documentHeight(clonedWindow.document);
        var renderer = new options.renderer(width, height, imageLoader, options, document);
        var parser = new NodeParser(node, renderer, support, imageLoader, options);
        return parser.ready.then(function() {
          log("Finished rendering");
          var canvas;
    
          if (options.type === "view") {
            canvas = crop(renderer.canvas, {width: renderer.canvas.width, height: renderer.canvas.height, top: 0, left: 0, x: 0, y: 0});
          } else if (node === clonedWindow.document.body || node === clonedWindow.document.documentElement || options.canvas != null) {
            canvas = renderer.canvas;
          } else {
            canvas = crop(renderer.canvas, {width:  options.width != null ? options.width : bounds.width, height: options.height != null ? options.height : bounds.height, top: bounds.top, left: bounds.left, x: 0, y: 0});
          }
    
          cleanupContainer(container, options);
          return canvas;
        });
      }
    
      function cleanupContainer(container, options) {
        if (options.removeContainer) {
          container.parentNode.removeChild(container);
          log("Cleaned up container");
        }
      }
    
      function crop(canvas, bounds) {
        var croppedCanvas = document.createElement("canvas");
        var x1 = Math.min(canvas.width - 1, Math.max(0, bounds.left));
        var x2 = Math.min(canvas.width, Math.max(1, bounds.left + bounds.width));
        var y1 = Math.min(canvas.height - 1, Math.max(0, bounds.top));
        var y2 = Math.min(canvas.height, Math.max(1, bounds.top + bounds.height));
        croppedCanvas.width = bounds.width;
        croppedCanvas.height =  bounds.height;
        var width = x2-x1;
        var height = y2-y1;
        log("Cropping canvas at:", "left:", bounds.left, "top:", bounds.top, "width:", width, "height:", height);
        log("Resulting crop with width", bounds.width, "and height", bounds.height, "with x", x1, "and y", y1);
        croppedCanvas.getContext("2d").drawImage(canvas, x1, y1, width, height, bounds.x, bounds.y, width, height);
        return croppedCanvas;
      }
    
      function documentWidth (doc) {
        return Math.max(
          Math.max(doc.body.scrollWidth, doc.documentElement.scrollWidth),
          Math.max(doc.body.offsetWidth, doc.documentElement.offsetWidth),
          Math.max(doc.body.clientWidth, doc.documentElement.clientWidth)
        );
      }
    
      function documentHeight (doc) {
        return Math.max(
          Math.max(doc.body.scrollHeight, doc.documentElement.scrollHeight),
          Math.max(doc.body.offsetHeight, doc.documentElement.offsetHeight),
          Math.max(doc.body.clientHeight, doc.documentElement.clientHeight)
        );
      }
    
      function absoluteUrl(url) {
        var link = document.createElement("a");
        link.href = url;
        link.href = link.href;
        return link;
      }
    
    },{"./clone":2,"./imageloader":11,"./log":13,"./nodecontainer":14,"./nodeparser":15,"./proxy":16,"./renderers/canvas":20,"./support":22,"./utils":26}],5:[function(_dereq_,module,exports){
      var log = _dereq_('./log');
      var smallImage = _dereq_('./utils').smallImage;
    
      function DummyImageContainer(src) {
        this.src = src;
        log("DummyImageContainer for", src);
        if (!this.promise || !this.image) {
          log("Initiating DummyImageContainer");
          DummyImageContainer.prototype.image = new Image();
          var image = this.image;
          DummyImageContainer.prototype.promise = new Promise(function(resolve, reject) {
            image.onload = resolve;
            image.onerror = reject;
            image.src = smallImage();
            if (image.complete === true) {
              resolve(image);
            }
          });
        }
      }
    
      module.exports = DummyImageContainer;
    
    },{"./log":13,"./utils":26}],6:[function(_dereq_,module,exports){
      var smallImage = _dereq_('./utils').smallImage;
    
      function Font(family, size) {
        var container = document.createElement('div'),
          img = document.createElement('img'),
          span = document.createElement('span'),
          sampleText = 'Hidden Text',
          baseline,
          middle;
    
        container.style.visibility = "hidden";
        container.style.fontFamily = family;
        container.style.fontSize = size;
        container.style.margin = 0;
        container.style.padding = 0;
    
        document.body.appendChild(container);
    
        img.src = smallImage();
        img.width = 1;
        img.height = 1;
    
        img.style.margin = 0;
        img.style.padding = 0;
        img.style.verticalAlign = "baseline";
    
        span.style.fontFamily = family;
        span.style.fontSize = size;
        span.style.margin = 0;
        span.style.padding = 0;
    
        span.appendChild(document.createTextNode(sampleText));
        container.appendChild(span);
        container.appendChild(img);
        baseline = (img.offsetTop - span.offsetTop) + 1;
    
        container.removeChild(span);
        container.appendChild(document.createTextNode(sampleText));
    
        container.style.lineHeight = "normal";
        img.style.verticalAlign = "super";
    
        middle = (img.offsetTop-container.offsetTop) + 1;
    
        document.body.removeChild(container);
    
        this.baseline = baseline;
        this.lineWidth = 1;
        this.middle = middle;
      }
    
      module.exports = Font;
    
    },{"./utils":26}],7:[function(_dereq_,module,exports){
      var Font = _dereq_('./font');
    
      function FontMetrics() {
        this.data = {};
      }
    
      FontMetrics.prototype.getMetrics = function(family, size) {
        if (this.data[family + "-" + size] === undefined) {
          this.data[family + "-" + size] = new Font(family, size);
        }
        return this.data[family + "-" + size];
      };
    
      module.exports = FontMetrics;
    
    },{"./font":6}],8:[function(_dereq_,module,exports){
      var utils = _dereq_('./utils');
      var getBounds = utils.getBounds;
      var loadUrlDocument = _dereq_('./proxy').loadUrlDocument;
    
      function FrameContainer(container, sameOrigin, options) {
        this.image = null;
        this.src = container;
        var self = this;
        var bounds = getBounds(container);
        this.promise = (!sameOrigin ? this.proxyLoad(options.proxy, bounds, options) : new Promise(function(resolve) {
            if (container.contentWindow.document.URL === "about:blank" || container.contentWindow.document.documentElement == null) {
              container.contentWindow.onload = container.onload = function() {
                resolve(container);
              };
            } else {
              resolve(container);
            }
          })).then(function(container) {
          var html2canvas = _dereq_('./core');
          return html2canvas(container.contentWindow.document.documentElement, {type: 'view', width: container.width, height: container.height, proxy: options.proxy, javascriptEnabled: options.javascriptEnabled, removeContainer: options.removeContainer, allowTaint: options.allowTaint, imageTimeout: options.imageTimeout / 2});
        }).then(function(canvas) {
          return self.image = canvas;
        });
      }
    
      FrameContainer.prototype.proxyLoad = function(proxy, bounds, options) {
        var container = this.src;
        return loadUrlDocument(container.src, proxy, container.ownerDocument, bounds.width, bounds.height, options);
      };
    
      module.exports = FrameContainer;
    
    },{"./core":4,"./proxy":16,"./utils":26}],9:[function(_dereq_,module,exports){
      function GradientContainer(imageData) {
        this.src = imageData.value;
        this.colorStops = [];
        this.type = null;
        this.x0 = 0.5;
        this.y0 = 0.5;
        this.x1 = 0.5;
        this.y1 = 0.5;
        this.promise = Promise.resolve(true);
      }
    
      GradientContainer.TYPES = {
        LINEAR: 1,
        RADIAL: 2
      };
    
    // TODO: support hsl[a], negative %/length values
    // TODO: support <angle> (e.g. -?\d{1,3}(?:\.\d+)deg, etc. : https://developer.mozilla.org/docs/Web/CSS/angle )
      GradientContainer.REGEXP_COLORSTOP = /^\s*(rgba?\(\s*\d{1,3},\s*\d{1,3},\s*\d{1,3}(?:,\s*[0-9\.]+)?\s*\)|[a-z]{3,20}|#[a-f0-9]{3,6})(?:\s+(\d{1,3}(?:\.\d+)?)(%|px)?)?(?:\s|$)/i;
    
      module.exports = GradientContainer;
    
    },{}],10:[function(_dereq_,module,exports){
      function ImageContainer(src, cors) {
        this.src = src;
        this.image = new Image();
        var self = this;
        this.tainted = null;
        this.promise = new Promise(function(resolve, reject) {
          self.image.onload = resolve;
          self.image.onerror = reject;
          if (cors) {
            self.image.crossOrigin = "anonymous";
          }
          self.image.src = src;
          if (self.image.complete === true) {
            resolve(self.image);
          }
        });
      }
    
      module.exports = ImageContainer;
    
    },{}],11:[function(_dereq_,module,exports){
      var log = _dereq_('./log');
      var ImageContainer = _dereq_('./imagecontainer');
      var DummyImageContainer = _dereq_('./dummyimagecontainer');
      var ProxyImageContainer = _dereq_('./proxyimagecontainer');
      var FrameContainer = _dereq_('./framecontainer');
      var SVGContainer = _dereq_('./svgcontainer');
      var SVGNodeContainer = _dereq_('./svgnodecontainer');
      var LinearGradientContainer = _dereq_('./lineargradientcontainer');
      var WebkitGradientContainer = _dereq_('./webkitgradientcontainer');
      var bind = _dereq_('./utils').bind;
    
      function ImageLoader(options, support) {
        this.link = null;
        this.options = options;
        this.support = support;
        this.origin = this.getOrigin(window.location.href);
      }
    
      ImageLoader.prototype.findImages = function(nodes) {
        var images = [];
        nodes.reduce(function(imageNodes, container) {
          switch(container.node.nodeName) {
            case "IMG":
              return imageNodes.concat([{
                args: [container.node.src],
                method: "url"
              }]);
            case "svg":
            case "IFRAME":
              return imageNodes.concat([{
                args: [container.node],
                method: container.node.nodeName
              }]);
          }
          return imageNodes;
        }, []).forEach(this.addImage(images, this.loadImage), this);
        return images;
      };
    
      ImageLoader.prototype.findBackgroundImage = function(images, container) {
        container.parseBackgroundImages().filter(this.hasImageBackground).forEach(this.addImage(images, this.loadImage), this);
        return images;
      };
    
      ImageLoader.prototype.addImage = function(images, callback) {
        return function(newImage) {
          newImage.args.forEach(function(image) {
            if (!this.imageExists(images, image)) {
              images.splice(0, 0, callback.call(this, newImage));
              log('Added image #' + (images.length), typeof(image) === "string" ? image.substring(0, 100) : image);
            }
          }, this);
        };
      };
    
      ImageLoader.prototype.hasImageBackground = function(imageData) {
        return imageData.method !== "none";
      };
    
      ImageLoader.prototype.loadImage = function(imageData) {
        if (imageData.method === "url") {
          var src = imageData.args[0];
          if (this.isSVG(src) && !this.support.svg && !this.options.allowTaint) {
            return new SVGContainer(src);
          } else if (src.match(/data:image\/.*;base64,/i)) {
            return new ImageContainer(src.replace(/url\(['"]{0,}|['"]{0,}\)$/ig, ''), false);
          } else if (this.isSameOrigin(src) || this.options.allowTaint === true || this.isSVG(src)) {
            return new ImageContainer(src, false);
          } else if (this.support.cors && !this.options.allowTaint && this.options.useCORS) {
            return new ImageContainer(src, true);
          } else if (this.options.proxy) {
            return new ProxyImageContainer(src, this.options.proxy);
          } else {
            return new DummyImageContainer(src);
          }
        } else if (imageData.method === "linear-gradient") {
          return new LinearGradientContainer(imageData);
        } else if (imageData.method === "gradient") {
          return new WebkitGradientContainer(imageData);
        } else if (imageData.method === "svg") {
          return new SVGNodeContainer(imageData.args[0], this.support.svg);
        } else if (imageData.method === "IFRAME") {
          return new FrameContainer(imageData.args[0], this.isSameOrigin(imageData.args[0].src), this.options);
        } else {
          return new DummyImageContainer(imageData);
        }
      };
    
      ImageLoader.prototype.isSVG = function(src) {
        return src.substring(src.length - 3).toLowerCase() === "svg" || SVGContainer.prototype.isInline(src);
      };
    
      ImageLoader.prototype.imageExists = function(images, src) {
        return images.some(function(image) {
          return image.src === src;
        });
      };
    
      ImageLoader.prototype.isSameOrigin = function(url) {
        return (this.getOrigin(url) === this.origin);
      };
    
      ImageLoader.prototype.getOrigin = function(url) {
        var link = this.link || (this.link = document.createElement("a"));
        link.href = url;
        link.href = link.href; // IE9, LOL! - http://jsfiddle.net/niklasvh/2e48b/
        return link.protocol + link.hostname + link.port;
      };
    
      ImageLoader.prototype.getPromise = function(container) {
        return this.timeout(container, this.options.imageTimeout)['catch'](function() {
          var dummy = new DummyImageContainer(container.src);
          return dummy.promise.then(function(image) {
            container.image = image;
          });
        });
      };
    
      ImageLoader.prototype.get = function(src) {
        var found = null;
        return this.images.some(function(img) {
          return (found = img).src === src;
        }) ? found : null;
      };
    
      ImageLoader.prototype.fetch = function(nodes) {
        this.images = nodes.reduce(bind(this.findBackgroundImage, this), this.findImages(nodes));
        this.images.forEach(function(image, index) {
          image.promise.then(function() {
            log("Succesfully loaded image #"+ (index+1), image);
          }, function(e) {
            log("Failed loading image #"+ (index+1), image, e);
          });
        });
        this.ready = Promise.all(this.images.map(this.getPromise, this));
        log("Finished searching images");
        return this;
      };
    
      ImageLoader.prototype.timeout = function(container, timeout) {
        var timer;
        var promise = Promise.race([container.promise, new Promise(function(res, reject) {
          timer = setTimeout(function() {
            log("Timed out loading image", container);
            reject(container);
          }, timeout);
        })]).then(function(container) {
          clearTimeout(timer);
          return container;
        });
        promise['catch'](function() {
          clearTimeout(timer);
        });
        return promise;
      };
    
      module.exports = ImageLoader;
    
    },{"./dummyimagecontainer":5,"./framecontainer":8,"./imagecontainer":10,"./lineargradientcontainer":12,"./log":13,"./proxyimagecontainer":17,"./svgcontainer":23,"./svgnodecontainer":24,"./utils":26,"./webkitgradientcontainer":27}],12:[function(_dereq_,module,exports){
      var GradientContainer = _dereq_('./gradientcontainer');
      var Color = _dereq_('./color');
    
      function LinearGradientContainer(imageData) {
        GradientContainer.apply(this, arguments);
        this.type = GradientContainer.TYPES.LINEAR;
    
        var hasDirection = LinearGradientContainer.REGEXP_DIRECTION.test( imageData.args[0] ) ||
          !GradientContainer.REGEXP_COLORSTOP.test( imageData.args[0] );
    
        if (hasDirection) {
          imageData.args[0].split(/\s+/).reverse().forEach(function(position, index) {
            switch(position) {
              case "left":
                this.x0 = 0;
                this.x1 = 1;
                break;
              case "top":
                this.y0 = 0;
                this.y1 = 1;
                break;
              case "right":
                this.x0 = 1;
                this.x1 = 0;
                break;
              case "bottom":
                this.y0 = 1;
                this.y1 = 0;
                break;
              case "to":
                var y0 = this.y0;
                var x0 = this.x0;
                this.y0 = this.y1;
                this.x0 = this.x1;
                this.x1 = x0;
                this.y1 = y0;
                break;
              case "center":
                break; // centered by default
              // Firefox internally converts position keywords to percentages:
              // http://www.w3.org/TR/2010/WD-CSS2-20101207/colors.html#propdef-background-position
              default: // percentage or absolute length
                // TODO: support absolute start point positions (e.g., use bounds to convert px to a ratio)
                var ratio = parseFloat(position, 10) * 1e-2;
                if (isNaN(ratio)) { // invalid or unhandled value
                  break;
                }
                if (index === 0) {
                  this.y0 = ratio;
                  this.y1 = 1 - this.y0;
                } else {
                  this.x0 = ratio;
                  this.x1 = 1 - this.x0;
                }
                break;
            }
          }, this);
        } else {
          this.y0 = 0;
          this.y1 = 1;
        }
    
        this.colorStops = imageData.args.slice(hasDirection ? 1 : 0).map(function(colorStop) {
          var colorStopMatch = colorStop.match(GradientContainer.REGEXP_COLORSTOP);
          var value = +colorStopMatch[2];
          var unit = value === 0 ? "%" : colorStopMatch[3]; // treat "0" as "0%"
          return {
            color: new Color(colorStopMatch[1]),
            // TODO: support absolute stop positions (e.g., compute gradient line length & convert px to ratio)
            stop: unit === "%" ? value / 100 : null
          };
        });
    
        if (this.colorStops[0].stop === null) {
          this.colorStops[0].stop = 0;
        }
    
        if (this.colorStops[this.colorStops.length - 1].stop === null) {
          this.colorStops[this.colorStops.length - 1].stop = 1;
        }
    
        // calculates and fills-in explicit stop positions when omitted from rule
        this.colorStops.forEach(function(colorStop, index) {
          if (colorStop.stop === null) {
            this.colorStops.slice(index).some(function(find, count) {
              if (find.stop !== null) {
                colorStop.stop = ((find.stop - this.colorStops[index - 1].stop) / (count + 1)) + this.colorStops[index - 1].stop;
                return true;
              } else {
                return false;
              }
            }, this);
          }
        }, this);
      }
    
      LinearGradientContainer.prototype = Object.create(GradientContainer.prototype);
    
    // TODO: support <angle> (e.g. -?\d{1,3}(?:\.\d+)deg, etc. : https://developer.mozilla.org/docs/Web/CSS/angle )
      LinearGradientContainer.REGEXP_DIRECTION = /^\s*(?:to|left|right|top|bottom|center|\d{1,3}(?:\.\d+)?%?)(?:\s|$)/i;
    
      module.exports = LinearGradientContainer;
    
    },{"./color":3,"./gradientcontainer":9}],13:[function(_dereq_,module,exports){
      var logger = function() {
        if (logger.options.logging && window.console && window.console.log) {
          Function.prototype.bind.call(window.console.log, (window.console)).apply(window.console, [(Date.now() - logger.options.start) + "ms", "html2canvas:"].concat([].slice.call(arguments, 0)));
        }
      };
    
      logger.options = {logging: false};
      module.exports = logger;
    
    },{}],14:[function(_dereq_,module,exports){
      var Color = _dereq_('./color');
      var utils = _dereq_('./utils');
      var getBounds = utils.getBounds;
      var parseBackgrounds = utils.parseBackgrounds;
      var offsetBounds = utils.offsetBounds;
    
      function NodeContainer(node, parent) {
        this.node = node;
        this.parent = parent;
        this.stack = null;
        this.bounds = null;
        this.borders = null;
        this.clip = [];
        this.backgroundClip = [];
        this.offsetBounds = null;
        this.visible = null;
        this.computedStyles = null;
        this.colors = {};
        this.styles = {};
        this.backgroundImages = null;
        this.transformData = null;
        this.transformMatrix = null;
        this.isPseudoElement = false;
        this.opacity = null;
      }
    
      NodeContainer.prototype.cloneTo = function(stack) {
        stack.visible = this.visible;
        stack.borders = this.borders;
        stack.bounds = this.bounds;
        stack.clip = this.clip;
        stack.backgroundClip = this.backgroundClip;
        stack.computedStyles = this.computedStyles;
        stack.styles = this.styles;
        stack.backgroundImages = this.backgroundImages;
        stack.opacity = this.opacity;
      };
    
      NodeContainer.prototype.getOpacity = function() {
        return this.opacity === null ? (this.opacity = this.cssFloat('opacity')) : this.opacity;
      };
    
      NodeContainer.prototype.assignStack = function(stack) {
        this.stack = stack;
        stack.children.push(this);
      };
    
      NodeContainer.prototype.isElementVisible = function() {
        return this.node.nodeType === Node.TEXT_NODE ? this.parent.visible : (
            this.css('display') !== "none" &&
            this.css('visibility') !== "hidden" &&
            !this.node.hasAttribute("data-html2canvas-ignore") &&
            (this.node.nodeName !== "INPUT" || this.node.getAttribute("type") !== "hidden")
          );
      };
    
      NodeContainer.prototype.css = function(attribute) {
        if (!this.computedStyles) {
          this.computedStyles = this.isPseudoElement ? this.parent.computedStyle(this.before ? ":before" : ":after") : this.computedStyle(null);
        }
    
        return this.styles[attribute] || (this.styles[attribute] = this.computedStyles[attribute]);
      };
    
      NodeContainer.prototype.prefixedCss = function(attribute) {
        var prefixes = ["webkit", "moz", "ms", "o"];
        var value = this.css(attribute);
        if (value === undefined) {
          prefixes.some(function(prefix) {
            value = this.css(prefix + attribute.substr(0, 1).toUpperCase() + attribute.substr(1));
            return value !== undefined;
          }, this);
        }
        return value === undefined ? null : value;
      };
    
      NodeContainer.prototype.computedStyle = function(type) {
        return this.node.ownerDocument.defaultView.getComputedStyle(this.node, type);
      };
    
      NodeContainer.prototype.cssInt = function(attribute) {
        var value = parseInt(this.css(attribute), 10);
        return (isNaN(value)) ? 0 : value; // borders in old IE are throwing 'medium' for demo.html
      };
    
      NodeContainer.prototype.color = function(attribute) {
        return this.colors[attribute] || (this.colors[attribute] = new Color(this.css(attribute)));
      };
    
      NodeContainer.prototype.cssFloat = function(attribute) {
        var value = parseFloat(this.css(attribute));
        return (isNaN(value)) ? 0 : value;
      };
    
      NodeContainer.prototype.fontWeight = function() {
        var weight = this.css("fontWeight");
        switch(parseInt(weight, 10)){
          case 401:
            weight = "bold";
            break;
          case 400:
            weight = "normal";
            break;
        }
        return weight;
      };
    
      NodeContainer.prototype.parseClip = function() {
        var matches = this.css('clip').match(this.CLIP);
        if (matches) {
          return {
            top: parseInt(matches[1], 10),
            right: parseInt(matches[2], 10),
            bottom: parseInt(matches[3], 10),
            left: parseInt(matches[4], 10)
          };
        }
        return null;
      };
    
      NodeContainer.prototype.parseBackgroundImages = function() {
        return this.backgroundImages || (this.backgroundImages = parseBackgrounds(this.css("backgroundImage")));
      };
    
      NodeContainer.prototype.cssList = function(property, index) {
        var value = (this.css(property) || '').split(',');
        value = value[index || 0] || value[0] || 'auto';
        value = value.trim().split(' ');
        if (value.length === 1) {
          value = [value[0], isPercentage(value[0]) ? 'auto' : value[0]];
        }
        return value;
      };
    
      NodeContainer.prototype.parseBackgroundSize = function(bounds, image, index) {
        var size = this.cssList("backgroundSize", index);
        var width, height;
    
        if (isPercentage(size[0])) {
          width = bounds.width * parseFloat(size[0]) / 100;
        } else if (/contain|cover/.test(size[0])) {
          var targetRatio = bounds.width / bounds.height, currentRatio = image.width / image.height;
          return (targetRatio < currentRatio ^ size[0] === 'contain') ?  {width: bounds.height * currentRatio, height: bounds.height} : {width: bounds.width, height: bounds.width / currentRatio};
        } else {
          width = parseInt(size[0], 10);
        }
    
        if (size[0] === 'auto' && size[1] === 'auto') {
          height = image.height;
        } else if (size[1] === 'auto') {
          height = width / image.width * image.height;
        } else if (isPercentage(size[1])) {
          height =  bounds.height * parseFloat(size[1]) / 100;
        } else {
          height = parseInt(size[1], 10);
        }
    
        if (size[0] === 'auto') {
          width = height / image.height * image.width;
        }
    
        return {width: width, height: height};
      };
    
      NodeContainer.prototype.parseBackgroundPosition = function(bounds, image, index, backgroundSize) {
        var position = this.cssList('backgroundPosition', index);
        var left, top;
    
        if (isPercentage(position[0])){
          left = (bounds.width - (backgroundSize || image).width) * (parseFloat(position[0]) / 100);
        } else {
          left = parseInt(position[0], 10);
        }
    
        if (position[1] === 'auto') {
          top = left / image.width * image.height;
        } else if (isPercentage(position[1])){
          top =  (bounds.height - (backgroundSize || image).height) * parseFloat(position[1]) / 100;
        } else {
          top = parseInt(position[1], 10);
        }
    
        if (position[0] === 'auto') {
          left = top / image.height * image.width;
        }
    
        return {left: left, top: top};
      };
    
      NodeContainer.prototype.parseBackgroundRepeat = function(index) {
        return this.cssList("backgroundRepeat", index)[0];
      };
    
      NodeContainer.prototype.parseTextShadows = function() {
        var textShadow = this.css("textShadow");
        var results = [];
    
        if (textShadow && textShadow !== 'none') {
          var shadows = textShadow.match(this.TEXT_SHADOW_PROPERTY);
          for (var i = 0; shadows && (i < shadows.length); i++) {
            var s = shadows[i].match(this.TEXT_SHADOW_VALUES);
            results.push({
              color: new Color(s[0]),
              offsetX: s[1] ? parseFloat(s[1].replace('px', '')) : 0,
              offsetY: s[2] ? parseFloat(s[2].replace('px', '')) : 0,
              blur: s[3] ? s[3].replace('px', '') : 0
            });
          }
        }
        return results;
      };
    
      NodeContainer.prototype.parseTransform = function() {
        if (!this.transformData) {
          if (this.hasTransform()) {
            var offset = this.parseBounds();
            var origin = this.prefixedCss("transformOrigin").split(" ").map(removePx).map(asFloat);
            origin[0] += offset.left;
            origin[1] += offset.top;
            this.transformData = {
              origin: origin,
              matrix: this.parseTransformMatrix()
            };
          } else {
            this.transformData = {
              origin: [0, 0],
              matrix: [1, 0, 0, 1, 0, 0]
            };
          }
        }
        return this.transformData;
      };
    
      NodeContainer.prototype.parseTransformMatrix = function() {
        if (!this.transformMatrix) {
          var transform = this.prefixedCss("transform");
          var matrix = transform ? parseMatrix(transform.match(this.MATRIX_PROPERTY)) : null;
          this.transformMatrix = matrix ? matrix : [1, 0, 0, 1, 0, 0];
        }
        return this.transformMatrix;
      };
    
      NodeContainer.prototype.parseBounds = function() {
        return this.bounds || (this.bounds = this.hasTransform() ? offsetBounds(this.node) : getBounds(this.node));
      };
    
      NodeContainer.prototype.hasTransform = function() {
        return this.parseTransformMatrix().join(",") !== "1,0,0,1,0,0" || (this.parent && this.parent.hasTransform());
      };
    
      NodeContainer.prototype.getValue = function() {
        var value = this.node.value || "";
        if (this.node.tagName === "SELECT") {
          value = selectionValue(this.node);
        } else if (this.node.type === "password") {
          value = Array(value.length + 1).join('\u2022'); // jshint ignore:line
        }
        return value.length === 0 ? (this.node.placeholder || "") : value;
      };
    
      NodeContainer.prototype.MATRIX_PROPERTY = /(matrix|matrix3d)\((.+)\)/;
      NodeContainer.prototype.TEXT_SHADOW_PROPERTY = /((rgba|rgb)\([^\)]+\)(\s-?\d+px){0,})/g;
      NodeContainer.prototype.TEXT_SHADOW_VALUES = /(-?\d+px)|(#.+)|(rgb\(.+\))|(rgba\(.+\))/g;
      NodeContainer.prototype.CLIP = /^rect\((\d+)px,? (\d+)px,? (\d+)px,? (\d+)px\)$/;
    
      function selectionValue(node) {
        var option = node.options[node.selectedIndex || 0];
        return option ? (option.text || "") : "";
      }
    
      function parseMatrix(match) {
        if (match && match[1] === "matrix") {
          return match[2].split(",").map(function(s) {
            return parseFloat(s.trim());
          });
        } else if (match && match[1] === "matrix3d") {
          var matrix3d = match[2].split(",").map(function(s) {
            return parseFloat(s.trim());
          });
          return [matrix3d[0], matrix3d[1], matrix3d[4], matrix3d[5], matrix3d[12], matrix3d[13]];
        }
      }
    
      function isPercentage(value) {
        return value.toString().indexOf("%") !== -1;
      }
    
      function removePx(str) {
        return str.replace("px", "");
      }
    
      function asFloat(str) {
        return parseFloat(str);
      }
    
      module.exports = NodeContainer;
    
    },{"./color":3,"./utils":26}],15:[function(_dereq_,module,exports){
      var log = _dereq_('./log');
      var punycode = _dereq_('punycode');
      var NodeContainer = _dereq_('./nodecontainer');
      var TextContainer = _dereq_('./textcontainer');
      var PseudoElementContainer = _dereq_('./pseudoelementcontainer');
      var FontMetrics = _dereq_('./fontmetrics');
      var Color = _dereq_('./color');
      var StackingContext = _dereq_('./stackingcontext');
      var utils = _dereq_('./utils');
      var bind = utils.bind;
      var getBounds = utils.getBounds;
      var parseBackgrounds = utils.parseBackgrounds;
      var offsetBounds = utils.offsetBounds;
    
      function NodeParser(element, renderer, support, imageLoader, options) {
        log("Starting NodeParser");
        this.renderer = renderer;
        this.options = options;
        this.range = null;
        this.support = support;
        this.renderQueue = [];
        this.stack = new StackingContext(true, 1, element.ownerDocument, null);
        var parent = new NodeContainer(element, null);
        if (options.background) {
          renderer.rectangle(0, 0, renderer.width, renderer.height, new Color(options.background));
        }
        if (element === element.ownerDocument.documentElement) {
          // http://www.w3.org/TR/css3-background/#special-backgrounds
          var canvasBackground = new NodeContainer(parent.color('backgroundColor').isTransparent() ? element.ownerDocument.body : element.ownerDocument.documentElement, null);
          renderer.rectangle(0, 0, renderer.width, renderer.height, canvasBackground.color('backgroundColor'));
        }
        parent.visibile = parent.isElementVisible();
        this.createPseudoHideStyles(element.ownerDocument);
        this.disableAnimations(element.ownerDocument);
        this.nodes = flatten([parent].concat(this.getChildren(parent)).filter(function(container) {
          return container.visible = container.isElementVisible();
        }).map(this.getPseudoElements, this));
        this.fontMetrics = new FontMetrics();
        log("Fetched nodes, total:", this.nodes.length);
        log("Calculate overflow clips");
        this.calculateOverflowClips();
        log("Start fetching images");
        this.images = imageLoader.fetch(this.nodes.filter(isElement));
        this.ready = this.images.ready.then(bind(function() {
          log("Images loaded, starting parsing");
          log("Creating stacking contexts");
          this.createStackingContexts();
          log("Sorting stacking contexts");
          this.sortStackingContexts(this.stack);
          this.parse(this.stack);
          log("Render queue created with " + this.renderQueue.length + " items");
          return new Promise(bind(function(resolve) {
            if (!options.async) {
              this.renderQueue.forEach(this.paint, this);
              resolve();
            } else if (typeof(options.async) === "function") {
              options.async.call(this, this.renderQueue, resolve);
            } else if (this.renderQueue.length > 0){
              this.renderIndex = 0;
              this.asyncRenderer(this.renderQueue, resolve);
            } else {
              resolve();
            }
          }, this));
        }, this));
      }
    
      NodeParser.prototype.calculateOverflowClips = function() {
        this.nodes.forEach(function(container) {
          if (isElement(container)) {
            if (isPseudoElement(container)) {
              container.appendToDOM();
            }
            container.borders = this.parseBorders(container);
            var clip = (container.css('overflow') === "hidden") ? [container.borders.clip] : [];
            var cssClip = container.parseClip();
            if (cssClip && ["absolute", "fixed"].indexOf(container.css('position')) !== -1) {
              clip.push([["rect",
                container.bounds.left + cssClip.left,
                container.bounds.top + cssClip.top,
                cssClip.right - cssClip.left,
                cssClip.bottom - cssClip.top
              ]]);
            }
            container.clip = hasParentClip(container) ? container.parent.clip.concat(clip) : clip;
            container.backgroundClip = (container.css('overflow') !== "hidden") ? container.clip.concat([container.borders.clip]) : container.clip;
            if (isPseudoElement(container)) {
              container.cleanDOM();
            }
          } else if (isTextNode(container)) {
            container.clip = hasParentClip(container) ? container.parent.clip : [];
          }
          if (!isPseudoElement(container)) {
            container.bounds = null;
          }
        }, this);
      };
    
      function hasParentClip(container) {
        return container.parent && container.parent.clip.length;
      }
    
      NodeParser.prototype.asyncRenderer = function(queue, resolve, asyncTimer) {
        asyncTimer = asyncTimer || Date.now();
        this.paint(queue[this.renderIndex++]);
        if (queue.length === this.renderIndex) {
          resolve();
        } else if (asyncTimer + 20 > Date.now()) {
          this.asyncRenderer(queue, resolve, asyncTimer);
        } else {
          setTimeout(bind(function() {
            this.asyncRenderer(queue, resolve);
          }, this), 0);
        }
      };
    
      NodeParser.prototype.createPseudoHideStyles = function(document) {
        this.createStyles(document, '.' + PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_BEFORE + ':before { content: "" !important; display: none !important; }' +
          '.' + PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_AFTER + ':after { content: "" !important; display: none !important; }');
      };
    
      NodeParser.prototype.disableAnimations = function(document) {
        this.createStyles(document, '* { -webkit-animation: none !important; -moz-animation: none !important; -o-animation: none !important; animation: none !important; ' +
          '-webkit-transition: none !important; -moz-transition: none !important; -o-transition: none !important; transition: none !important;}');
      };
    
      NodeParser.prototype.createStyles = function(document, styles) {
        var hidePseudoElements = document.createElement('style');
        hidePseudoElements.innerHTML = styles;
        document.body.appendChild(hidePseudoElements);
      };
    
      NodeParser.prototype.getPseudoElements = function(container) {
        var nodes = [[container]];
        if (container.node.nodeType === Node.ELEMENT_NODE) {
          var before = this.getPseudoElement(container, ":before");
          var after = this.getPseudoElement(container, ":after");
    
          if (before) {
            nodes.push(before);
          }
    
          if (after) {
            nodes.push(after);
          }
        }
        return flatten(nodes);
      };
    
      function toCamelCase(str) {
        return str.replace(/(\-[a-z])/g, function(match){
          return match.toUpperCase().replace('-','');
        });
      }
    
      NodeParser.prototype.getPseudoElement = function(container, type) {
        var style = container.computedStyle(type);
        if(!style || !style.content || style.content === "none" || style.content === "-moz-alt-content" || style.display === "none") {
          return null;
        }
    
        var content = stripQuotes(style.content);
        var isImage = content.substr(0, 3) === 'url';
        var pseudoNode = document.createElement(isImage ? 'img' : 'html2canvaspseudoelement');
        var pseudoContainer = new PseudoElementContainer(pseudoNode, container, type);
    
        for (var i = style.length-1; i >= 0; i--) {
          var property = toCamelCase(style.item(i));
          pseudoNode.style[property] = style[property];
        }
    
        pseudoNode.className = PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_BEFORE + " " + PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_AFTER;
    
        if (isImage) {
          pseudoNode.src = parseBackgrounds(content)[0].args[0];
          return [pseudoContainer];
        } else {
          var text = document.createTextNode(content);
          pseudoNode.appendChild(text);
          return [pseudoContainer, new TextContainer(text, pseudoContainer)];
        }
      };
    
    
      NodeParser.prototype.getChildren = function(parentContainer) {
        return flatten([].filter.call(parentContainer.node.childNodes, renderableNode).map(function(node) {
          var container = [node.nodeType === Node.TEXT_NODE ? new TextContainer(node, parentContainer) : new NodeContainer(node, parentContainer)].filter(nonIgnoredElement);
          return node.nodeType === Node.ELEMENT_NODE && container.length && node.tagName !== "TEXTAREA" ? (container[0].isElementVisible() ? container.concat(this.getChildren(container[0])) : []) : container;
        }, this));
      };
    
      NodeParser.prototype.newStackingContext = function(container, hasOwnStacking) {
        var stack = new StackingContext(hasOwnStacking, container.getOpacity(), container.node, container.parent);
        container.cloneTo(stack);
        var parentStack = hasOwnStacking ? stack.getParentStack(this) : stack.parent.stack;
        parentStack.contexts.push(stack);
        container.stack = stack;
      };
    
      NodeParser.prototype.createStackingContexts = function() {
        this.nodes.forEach(function(container) {
          if (isElement(container) && (this.isRootElement(container) || hasOpacity(container) || isPositionedForStacking(container) || this.isBodyWithTransparentRoot(container) || container.hasTransform())) {
            this.newStackingContext(container, true);
          } else if (isElement(container) && ((isPositioned(container) && zIndex0(container)) || isInlineBlock(container) || isFloating(container))) {
            this.newStackingContext(container, false);
          } else {
            container.assignStack(container.parent.stack);
          }
        }, this);
      };
    
      NodeParser.prototype.isBodyWithTransparentRoot = function(container) {
        return container.node.nodeName === "BODY" && container.parent.color('backgroundColor').isTransparent();
      };
    
      NodeParser.prototype.isRootElement = function(container) {
        return container.parent === null;
      };
    
      NodeParser.prototype.sortStackingContexts = function(stack) {
        stack.contexts.sort(zIndexSort(stack.contexts.slice(0)));
        stack.contexts.forEach(this.sortStackingContexts, this);
      };
    
      NodeParser.prototype.parseTextBounds = function(container) {
        return function(text, index, textList) {
          if (container.parent.css("textDecoration").substr(0, 4) !== "none" || text.trim().length !== 0) {
            if (this.support.rangeBounds && !container.parent.hasTransform()) {
              var offset = textList.slice(0, index).join("").length;
              return this.getRangeBounds(container.node, offset, text.length);
            } else if (container.node && typeof(container.node.data) === "string") {
              var replacementNode = container.node.splitText(text.length);
              var bounds = this.getWrapperBounds(container.node, container.parent.hasTransform());
              container.node = replacementNode;
              return bounds;
            }
          } else if(!this.support.rangeBounds || container.parent.hasTransform()){
            container.node = container.node.splitText(text.length);
          }
          return {};
        };
      };
    
      NodeParser.prototype.getWrapperBounds = function(node, transform) {
        var wrapper = node.ownerDocument.createElement('html2canvaswrapper');
        var parent = node.parentNode,
          backupText = node.cloneNode(true);
    
        wrapper.appendChild(node.cloneNode(true));
        parent.replaceChild(wrapper, node);
        var bounds = transform ? offsetBounds(wrapper) : getBounds(wrapper);
        parent.replaceChild(backupText, wrapper);
        return bounds;
      };
    
      NodeParser.prototype.getRangeBounds = function(node, offset, length) {
        var range = this.range || (this.range = node.ownerDocument.createRange());
        range.setStart(node, offset);
        range.setEnd(node, offset + length);
        return range.getBoundingClientRect();
      };
    
      function ClearTransform() {}
    
      NodeParser.prototype.parse = function(stack) {
        // http://www.w3.org/TR/CSS21/visuren.html#z-index
        var negativeZindex = stack.contexts.filter(negativeZIndex); // 2. the child stacking contexts with negative stack levels (most negative first).
        var descendantElements = stack.children.filter(isElement);
        var descendantNonFloats = descendantElements.filter(not(isFloating));
        var nonInlineNonPositionedDescendants = descendantNonFloats.filter(not(isPositioned)).filter(not(inlineLevel)); // 3 the in-flow, non-inline-level, non-positioned descendants.
        var nonPositionedFloats = descendantElements.filter(not(isPositioned)).filter(isFloating); // 4. the non-positioned floats.
        var inFlow = descendantNonFloats.filter(not(isPositioned)).filter(inlineLevel); // 5. the in-flow, inline-level, non-positioned descendants, including inline tables and inline blocks.
        var stackLevel0 = stack.contexts.concat(descendantNonFloats.filter(isPositioned)).filter(zIndex0); // 6. the child stacking contexts with stack level 0 and the positioned descendants with stack level 0.
        var text = stack.children.filter(isTextNode).filter(hasText);
        var positiveZindex = stack.contexts.filter(positiveZIndex); // 7. the child stacking contexts with positive stack levels (least positive first).
        negativeZindex.concat(nonInlineNonPositionedDescendants).concat(nonPositionedFloats)
          .concat(inFlow).concat(stackLevel0).concat(text).concat(positiveZindex).forEach(function(container) {
          this.renderQueue.push(container);
          if (isStackingContext(container)) {
            this.parse(container);
            this.renderQueue.push(new ClearTransform());
          }
        }, this);
      };
    
      NodeParser.prototype.paint = function(container) {
        try {
          if (container instanceof ClearTransform) {
            this.renderer.ctx.restore();
          } else if (isTextNode(container)) {
            if (isPseudoElement(container.parent)) {
              container.parent.appendToDOM();
            }
            this.paintText(container);
            if (isPseudoElement(container.parent)) {
              container.parent.cleanDOM();
            }
          } else {
            this.paintNode(container);
          }
        } catch(e) {
          log(e);
          if (this.options.strict) {
            throw e;
          }
        }
      };
    
      NodeParser.prototype.paintNode = function(container) {
        if (isStackingContext(container)) {
          this.renderer.setOpacity(container.opacity);
          this.renderer.ctx.save();
          if (container.hasTransform()) {
            this.renderer.setTransform(container.parseTransform());
          }
        }
    
        if (container.node.nodeName === "INPUT" && container.node.type === "checkbox") {
          this.paintCheckbox(container);
        } else if (container.node.nodeName === "INPUT" && container.node.type === "radio") {
          this.paintRadio(container);
        } else {
          this.paintElement(container);
        }
      };
    
      NodeParser.prototype.paintElement = function(container) {
        var bounds = container.parseBounds();
        this.renderer.clip(container.backgroundClip, function() {
          this.renderer.renderBackground(container, bounds, container.borders.borders.map(getWidth));
        }, this);
    
        this.renderer.clip(container.clip, function() {
          this.renderer.renderBorders(container.borders.borders);
        }, this);
    
        this.renderer.clip(container.backgroundClip, function() {
          switch (container.node.nodeName) {
            case "svg":
            case "IFRAME":
              var imgContainer = this.images.get(container.node);
              if (imgContainer) {
                this.renderer.renderImage(container, bounds, container.borders, imgContainer);
              } else {
                log("Error loading <" + container.node.nodeName + ">", container.node);
              }
              break;
            case "IMG":
              var imageContainer = this.images.get(container.node.src);
              if (imageContainer) {
                this.renderer.renderImage(container, bounds, container.borders, imageContainer);
              } else {
                log("Error loading <img>", container.node.src);
              }
              break;
            case "CANVAS":
              this.renderer.renderImage(container, bounds, container.borders, {image: container.node});
              break;
            case "SELECT":
            case "INPUT":
            case "TEXTAREA":
              this.paintFormValue(container);
              break;
          }
        }, this);
      };
    
      NodeParser.prototype.paintCheckbox = function(container) {
        var b = container.parseBounds();
    
        var size = Math.min(b.width, b.height);
        var bounds = {width: size - 1, height: size - 1, top: b.top, left: b.left};
        var r = [3, 3];
        var radius = [r, r, r, r];
        var borders = [1,1,1,1].map(function(w) {
          return {color: new Color('#A5A5A5'), width: w};
        });
    
        var borderPoints = calculateCurvePoints(bounds, radius, borders);
    
        this.renderer.clip(container.backgroundClip, function() {
          this.renderer.rectangle(bounds.left + 1, bounds.top + 1, bounds.width - 2, bounds.height - 2, new Color("#DEDEDE"));
          this.renderer.renderBorders(calculateBorders(borders, bounds, borderPoints, radius));
          if (container.node.checked) {
            this.renderer.font(new Color('#424242'), 'normal', 'normal', 'bold', (size - 3) + "px", 'arial');
            this.renderer.text("\u2714", bounds.left + size / 6, bounds.top + size - 1);
          }
        }, this);
      };
    
      NodeParser.prototype.paintRadio = function(container) {
        var bounds = container.parseBounds();
    
        var size = Math.min(bounds.width, bounds.height) - 2;
    
        this.renderer.clip(container.backgroundClip, function() {
          this.renderer.circleStroke(bounds.left + 1, bounds.top + 1, size, new Color('#DEDEDE'), 1, new Color('#A5A5A5'));
          if (container.node.checked) {
            this.renderer.circle(Math.ceil(bounds.left + size / 4) + 1, Math.ceil(bounds.top + size / 4) + 1, Math.floor(size / 2), new Color('#424242'));
          }
        }, this);
      };
    
      NodeParser.prototype.paintFormValue = function(container) {
        var value = container.getValue();
        if (value.length > 0) {
          var document = container.node.ownerDocument;
          var wrapper = document.createElement('html2canvaswrapper');
          var properties = ['lineHeight', 'textAlign', 'fontFamily', 'fontWeight', 'fontSize', 'color',
            'paddingLeft', 'paddingTop', 'paddingRight', 'paddingBottom',
            'width', 'height', 'borderLeftStyle', 'borderTopStyle', 'borderLeftWidth', 'borderTopWidth',
            'boxSizing', 'whiteSpace', 'wordWrap'];
    
          properties.forEach(function(property) {
            try {
              wrapper.style[property] = container.css(property);
            } catch(e) {
              // Older IE has issues with "border"
              log("html2canvas: Parse: Exception caught in renderFormValue: " + e.message);
            }
          });
          var bounds = container.parseBounds();
          wrapper.style.position = "fixed";
          wrapper.style.left = bounds.left + "px";
          wrapper.style.top = bounds.top + "px";
          wrapper.textContent = value;
          document.body.appendChild(wrapper);
          this.paintText(new TextContainer(wrapper.firstChild, container));
          document.body.removeChild(wrapper);
        }
      };
    
      NodeParser.prototype.paintText = function(container) {
        container.applyTextTransform();
        var characters = punycode.ucs2.decode(container.node.data);
        var textList = (!this.options.letterRendering || noLetterSpacing(container)) && !hasUnicode(container.node.data) ? getWords(characters) : characters.map(function(character) {
            return punycode.ucs2.encode([character]);
          });
    
        var weight = container.parent.fontWeight();
        var size = container.parent.css('fontSize');
        var family = container.parent.css('fontFamily');
        var shadows = container.parent.parseTextShadows();
    
        this.renderer.font(container.parent.color('color'), container.parent.css('fontStyle'), container.parent.css('fontVariant'), weight, size, family);
        if (shadows.length) {
          // TODO: support multiple text shadows
          this.renderer.fontShadow(shadows[0].color, shadows[0].offsetX, shadows[0].offsetY, shadows[0].blur);
        } else {
          this.renderer.clearShadow();
        }
    
        this.renderer.clip(container.parent.clip, function() {
          textList.map(this.parseTextBounds(container), this).forEach(function(bounds, index) {
            if (bounds) {
              this.renderer.text(textList[index], bounds.left, bounds.bottom);
              this.renderTextDecoration(container.parent, bounds, this.fontMetrics.getMetrics(family, size));
            }
          }, this);
        }, this);
      };
    
      NodeParser.prototype.renderTextDecoration = function(container, bounds, metrics) {
        switch(container.css("textDecoration").split(" ")[0]) {
          case "underline":
            // Draws a line at the baseline of the font
            // TODO As some browsers display the line as more than 1px if the font-size is big, need to take that into account both in position and size
            this.renderer.rectangle(bounds.left, Math.round(bounds.top + metrics.baseline + metrics.lineWidth), bounds.width, 1, container.color("color"));
            break;
          case "overline":
            this.renderer.rectangle(bounds.left, Math.round(bounds.top), bounds.width, 1, container.color("color"));
            break;
          case "line-through":
            // TODO try and find exact position for line-through
            this.renderer.rectangle(bounds.left, Math.ceil(bounds.top + metrics.middle + metrics.lineWidth), bounds.width, 1, container.color("color"));
            break;
        }
      };
    
      var borderColorTransforms = {
        inset: [
          ["darken", 0.60],
          ["darken", 0.10],
          ["darken", 0.10],
          ["darken", 0.60]
        ]
      };
    
      NodeParser.prototype.parseBorders = function(container) {
        var nodeBounds = container.parseBounds();
        var radius = getBorderRadiusData(container);
        var borders = ["Top", "Right", "Bottom", "Left"].map(function(side, index) {
          var style = container.css('border' + side + 'Style');
          var color = container.color('border' + side + 'Color');
          if (style === "inset" && color.isBlack()) {
            color = new Color([255, 255, 255, color.a]); // this is wrong, but
          }
          var colorTransform = borderColorTransforms[style] ? borderColorTransforms[style][index] : null;
          return {
            width: container.cssInt('border' + side + 'Width'),
            color: colorTransform ? color[colorTransform[0]](colorTransform[1]) : color,
            args: null
          };
        });
        var borderPoints = calculateCurvePoints(nodeBounds, radius, borders);
    
        return {
          clip: this.parseBackgroundClip(container, borderPoints, borders, radius, nodeBounds),
          borders: calculateBorders(borders, nodeBounds, borderPoints, radius)
        };
      };
    
      function calculateBorders(borders, nodeBounds, borderPoints, radius) {
        return borders.map(function(border, borderSide) {
          if (border.width > 0) {
            var bx = nodeBounds.left;
            var by = nodeBounds.top;
            var bw = nodeBounds.width;
            var bh = nodeBounds.height - (borders[2].width);
    
            switch(borderSide) {
              case 0:
                // top border
                bh = borders[0].width;
                border.args = drawSide({
                    c1: [bx, by],
                    c2: [bx + bw, by],
                    c3: [bx + bw - borders[1].width, by + bh],
                    c4: [bx + borders[3].width, by + bh]
                  }, radius[0], radius[1],
                  borderPoints.topLeftOuter, borderPoints.topLeftInner, borderPoints.topRightOuter, borderPoints.topRightInner);
                break;
              case 1:
                // right border
                bx = nodeBounds.left + nodeBounds.width - (borders[1].width);
                bw = borders[1].width;
    
                border.args = drawSide({
                    c1: [bx + bw, by],
                    c2: [bx + bw, by + bh + borders[2].width],
                    c3: [bx, by + bh],
                    c4: [bx, by + borders[0].width]
                  }, radius[1], radius[2],
                  borderPoints.topRightOuter, borderPoints.topRightInner, borderPoints.bottomRightOuter, borderPoints.bottomRightInner);
                break;
              case 2:
                // bottom border
                by = (by + nodeBounds.height) - (borders[2].width);
                bh = borders[2].width;
                border.args = drawSide({
                    c1: [bx + bw, by + bh],
                    c2: [bx, by + bh],
                    c3: [bx + borders[3].width, by],
                    c4: [bx + bw - borders[3].width, by]
                  }, radius[2], radius[3],
                  borderPoints.bottomRightOuter, borderPoints.bottomRightInner, borderPoints.bottomLeftOuter, borderPoints.bottomLeftInner);
                break;
              case 3:
                // left border
                bw = borders[3].width;
                border.args = drawSide({
                    c1: [bx, by + bh + borders[2].width],
                    c2: [bx, by],
                    c3: [bx + bw, by + borders[0].width],
                    c4: [bx + bw, by + bh]
                  }, radius[3], radius[0],
                  borderPoints.bottomLeftOuter, borderPoints.bottomLeftInner, borderPoints.topLeftOuter, borderPoints.topLeftInner);
                break;
            }
          }
          return border;
        });
      }
    
      NodeParser.prototype.parseBackgroundClip = function(container, borderPoints, borders, radius, bounds) {
        var backgroundClip = container.css('backgroundClip'),
          borderArgs = [];
    
        switch(backgroundClip) {
          case "content-box":
          case "padding-box":
            parseCorner(borderArgs, radius[0], radius[1], borderPoints.topLeftInner, borderPoints.topRightInner, bounds.left + borders[3].width, bounds.top + borders[0].width);
            parseCorner(borderArgs, radius[1], radius[2], borderPoints.topRightInner, borderPoints.bottomRightInner, bounds.left + bounds.width - borders[1].width, bounds.top + borders[0].width);
            parseCorner(borderArgs, radius[2], radius[3], borderPoints.bottomRightInner, borderPoints.bottomLeftInner, bounds.left + bounds.width - borders[1].width, bounds.top + bounds.height - borders[2].width);
            parseCorner(borderArgs, radius[3], radius[0], borderPoints.bottomLeftInner, borderPoints.topLeftInner, bounds.left + borders[3].width, bounds.top + bounds.height - borders[2].width);
            break;
    
          default:
            parseCorner(borderArgs, radius[0], radius[1], borderPoints.topLeftOuter, borderPoints.topRightOuter, bounds.left, bounds.top);
            parseCorner(borderArgs, radius[1], radius[2], borderPoints.topRightOuter, borderPoints.bottomRightOuter, bounds.left + bounds.width, bounds.top);
            parseCorner(borderArgs, radius[2], radius[3], borderPoints.bottomRightOuter, borderPoints.bottomLeftOuter, bounds.left + bounds.width, bounds.top + bounds.height);
            parseCorner(borderArgs, radius[3], radius[0], borderPoints.bottomLeftOuter, borderPoints.topLeftOuter, bounds.left, bounds.top + bounds.height);
            break;
        }
    
        return borderArgs;
      };
    
      function getCurvePoints(x, y, r1, r2) {
        var kappa = 4 * ((Math.sqrt(2) - 1) / 3);
        var ox = (r1) * kappa, // control point offset horizontal
          oy = (r2) * kappa, // control point offset vertical
          xm = x + r1, // x-middle
          ym = y + r2; // y-middle
        return {
          topLeft: bezierCurve({x: x, y: ym}, {x: x, y: ym - oy}, {x: xm - ox, y: y}, {x: xm, y: y}),
          topRight: bezierCurve({x: x, y: y}, {x: x + ox,y: y}, {x: xm, y: ym - oy}, {x: xm, y: ym}),
          bottomRight: bezierCurve({x: xm, y: y}, {x: xm, y: y + oy}, {x: x + ox, y: ym}, {x: x, y: ym}),
          bottomLeft: bezierCurve({x: xm, y: ym}, {x: xm - ox, y: ym}, {x: x, y: y + oy}, {x: x, y:y})
        };
      }
    
      function calculateCurvePoints(bounds, borderRadius, borders) {
        var x = bounds.left,
          y = bounds.top,
          width = bounds.width,
          height = bounds.height,
    
          tlh = borderRadius[0][0] < width / 2 ? borderRadius[0][0] : width / 2,
          tlv = borderRadius[0][1] < height / 2 ? borderRadius[0][1] : height / 2,
          trh = borderRadius[1][0] < width / 2 ? borderRadius[1][0] : width / 2,
          trv = borderRadius[1][1] < height / 2 ? borderRadius[1][1] : height / 2,
          brh = borderRadius[2][0] < width / 2 ? borderRadius[2][0] : width / 2,
          brv = borderRadius[2][1] < height / 2 ? borderRadius[2][1] : height / 2,
          blh = borderRadius[3][0] < width / 2 ? borderRadius[3][0] : width / 2,
          blv = borderRadius[3][1] < height / 2 ? borderRadius[3][1] : height / 2;
    
        var topWidth = width - trh,
          rightHeight = height - brv,
          bottomWidth = width - brh,
          leftHeight = height - blv;
    
        return {
          topLeftOuter: getCurvePoints(x, y, tlh, tlv).topLeft.subdivide(0.5),
          topLeftInner: getCurvePoints(x + borders[3].width, y + borders[0].width, Math.max(0, tlh - borders[3].width), Math.max(0, tlv - borders[0].width)).topLeft.subdivide(0.5),
          topRightOuter: getCurvePoints(x + topWidth, y, trh, trv).topRight.subdivide(0.5),
          topRightInner: getCurvePoints(x + Math.min(topWidth, width + borders[3].width), y + borders[0].width, (topWidth > width + borders[3].width) ? 0 :trh - borders[3].width, trv - borders[0].width).topRight.subdivide(0.5),
          bottomRightOuter: getCurvePoints(x + bottomWidth, y + rightHeight, brh, brv).bottomRight.subdivide(0.5),
          bottomRightInner: getCurvePoints(x + Math.min(bottomWidth, width - borders[3].width), y + Math.min(rightHeight, height + borders[0].width), Math.max(0, brh - borders[1].width),  brv - borders[2].width).bottomRight.subdivide(0.5),
          bottomLeftOuter: getCurvePoints(x, y + leftHeight, blh, blv).bottomLeft.subdivide(0.5),
          bottomLeftInner: getCurvePoints(x + borders[3].width, y + leftHeight, Math.max(0, blh - borders[3].width), blv - borders[2].width).bottomLeft.subdivide(0.5)
        };
      }
    
      function bezierCurve(start, startControl, endControl, end) {
        var lerp = function (a, b, t) {
          return {
            x: a.x + (b.x - a.x) * t,
            y: a.y + (b.y - a.y) * t
          };
        };
    
        return {
          start: start,
          startControl: startControl,
          endControl: endControl,
          end: end,
          subdivide: function(t) {
            var ab = lerp(start, startControl, t),
              bc = lerp(startControl, endControl, t),
              cd = lerp(endControl, end, t),
              abbc = lerp(ab, bc, t),
              bccd = lerp(bc, cd, t),
              dest = lerp(abbc, bccd, t);
            return [bezierCurve(start, ab, abbc, dest), bezierCurve(dest, bccd, cd, end)];
          },
          curveTo: function(borderArgs) {
            borderArgs.push(["bezierCurve", startControl.x, startControl.y, endControl.x, endControl.y, end.x, end.y]);
          },
          curveToReversed: function(borderArgs) {
            borderArgs.push(["bezierCurve", endControl.x, endControl.y, startControl.x, startControl.y, start.x, start.y]);
          }
        };
      }
    
      function drawSide(borderData, radius1, radius2, outer1, inner1, outer2, inner2) {
        var borderArgs = [];
    
        if (radius1[0] > 0 || radius1[1] > 0) {
          borderArgs.push(["line", outer1[1].start.x, outer1[1].start.y]);
          outer1[1].curveTo(borderArgs);
        } else {
          borderArgs.push([ "line", borderData.c1[0], borderData.c1[1]]);
        }
    
        if (radius2[0] > 0 || radius2[1] > 0) {
          borderArgs.push(["line", outer2[0].start.x, outer2[0].start.y]);
          outer2[0].curveTo(borderArgs);
          borderArgs.push(["line", inner2[0].end.x, inner2[0].end.y]);
          inner2[0].curveToReversed(borderArgs);
        } else {
          borderArgs.push(["line", borderData.c2[0], borderData.c2[1]]);
          borderArgs.push(["line", borderData.c3[0], borderData.c3[1]]);
        }
    
        if (radius1[0] > 0 || radius1[1] > 0) {
          borderArgs.push(["line", inner1[1].end.x, inner1[1].end.y]);
          inner1[1].curveToReversed(borderArgs);
        } else {
          borderArgs.push(["line", borderData.c4[0], borderData.c4[1]]);
        }
    
        return borderArgs;
      }
    
      function parseCorner(borderArgs, radius1, radius2, corner1, corner2, x, y) {
        if (radius1[0] > 0 || radius1[1] > 0) {
          borderArgs.push(["line", corner1[0].start.x, corner1[0].start.y]);
          corner1[0].curveTo(borderArgs);
          corner1[1].curveTo(borderArgs);
        } else {
          borderArgs.push(["line", x, y]);
        }
    
        if (radius2[0] > 0 || radius2[1] > 0) {
          borderArgs.push(["line", corner2[0].start.x, corner2[0].start.y]);
        }
      }
    
      function negativeZIndex(container) {
        return container.cssInt("zIndex") < 0;
      }
    
      function positiveZIndex(container) {
        return container.cssInt("zIndex") > 0;
      }
    
      function zIndex0(container) {
        return container.cssInt("zIndex") === 0;
      }
    
      function inlineLevel(container) {
        return ["inline", "inline-block", "inline-table"].indexOf(container.css("display")) !== -1;
      }
    
      function isStackingContext(container) {
        return (container instanceof StackingContext);
      }
    
      function hasText(container) {
        return container.node.data.trim().length > 0;
      }
    
      function noLetterSpacing(container) {
        return (/^(normal|none|0px)$/.test(container.parent.css("letterSpacing")));
      }
    
      function getBorderRadiusData(container) {
        return ["TopLeft", "TopRight", "BottomRight", "BottomLeft"].map(function(side) {
          var value = container.css('border' + side + 'Radius');
          var arr = value.split(" ");
          if (arr.length <= 1) {
            arr[1] = arr[0];
          }
          return arr.map(asInt);
        });
      }
    
      function renderableNode(node) {
        return (node.nodeType === Node.TEXT_NODE || node.nodeType === Node.ELEMENT_NODE);
      }
    
      function isPositionedForStacking(container) {
        var position = container.css("position");
        var zIndex = (["absolute", "relative", "fixed"].indexOf(position) !== -1) ? container.css("zIndex") : "auto";
        return zIndex !== "auto";
      }
    
      function isPositioned(container) {
        return container.css("position") !== "static";
      }
    
      function isFloating(container) {
        return container.css("float") !== "none";
      }
    
      function isInlineBlock(container) {
        return ["inline-block", "inline-table"].indexOf(container.css("display")) !== -1;
      }
    
      function not(callback) {
        var context = this;
        return function() {
          return !callback.apply(context, arguments);
        };
      }
    
      function isElement(container) {
        return container.node.nodeType === Node.ELEMENT_NODE;
      }
    
      function isPseudoElement(container) {
        return container.isPseudoElement === true;
      }
    
      function isTextNode(container) {
        return container.node.nodeType === Node.TEXT_NODE;
      }
    
      function zIndexSort(contexts) {
        return function(a, b) {
          return (a.cssInt("zIndex") + (contexts.indexOf(a) / contexts.length)) - (b.cssInt("zIndex") + (contexts.indexOf(b) / contexts.length));
        };
      }
    
      function hasOpacity(container) {
        return container.getOpacity() < 1;
      }
    
      function asInt(value) {
        return parseInt(value, 10);
      }
    
      function getWidth(border) {
        return border.width;
      }
    
      function nonIgnoredElement(nodeContainer) {
        return (nodeContainer.node.nodeType !== Node.ELEMENT_NODE || ["SCRIPT", "HEAD", "TITLE", "OBJECT", "BR", "OPTION"].indexOf(nodeContainer.node.nodeName) === -1);
      }
    
      function flatten(arrays) {
        return [].concat.apply([], arrays);
      }
    
      function stripQuotes(content) {
        var first = content.substr(0, 1);
        return (first === content.substr(content.length - 1) && first.match(/'|"/)) ? content.substr(1, content.length - 2) : content;
      }
    
      function getWords(characters) {
        var words = [], i = 0, onWordBoundary = false, word;
        while(characters.length) {
          if (isWordBoundary(characters[i]) === onWordBoundary) {
            word = characters.splice(0, i);
            if (word.length) {
              words.push(punycode.ucs2.encode(word));
            }
            onWordBoundary =! onWordBoundary;
            i = 0;
          } else {
            i++;
          }
    
          if (i >= characters.length) {
            word = characters.splice(0, i);
            if (word.length) {
              words.push(punycode.ucs2.encode(word));
            }
          }
        }
        return words;
      }
    
      function isWordBoundary(characterCode) {
        return [
            32, // <space>
            13, // \r
            10, // \n
            9, // \t
            45 // -
          ].indexOf(characterCode) !== -1;
      }
    
      function hasUnicode(string) {
        return (/[^\u0000-\u00ff]/).test(string);
      }
    
      module.exports = NodeParser;
    
    },{"./color":3,"./fontmetrics":7,"./log":13,"./nodecontainer":14,"./pseudoelementcontainer":18,"./stackingcontext":21,"./textcontainer":25,"./utils":26,"punycode":1}],16:[function(_dereq_,module,exports){
      var XHR = _dereq_('./xhr');
      var utils = _dereq_('./utils');
      var log = _dereq_('./log');
      var createWindowClone = _dereq_('./clone');
      var decode64 = utils.decode64;
    
      function Proxy(src, proxyUrl, document) {
        var supportsCORS = ('withCredentials' in new XMLHttpRequest());
        if (!proxyUrl) {
          return Promise.reject("No proxy configured");
        }
        var callback = createCallback(supportsCORS);
        var url = createProxyUrl(proxyUrl, src, callback);
    
        return supportsCORS ? XHR(url) : (jsonp(document, url, callback).then(function(response) {
            return decode64(response.content);
          }));
      }
      var proxyCount = 0;
    
      function ProxyURL(src, proxyUrl, document) {
        var supportsCORSImage = ('crossOrigin' in new Image());
        var callback = createCallback(supportsCORSImage);
        var url = createProxyUrl(proxyUrl, src, callback);
        return (supportsCORSImage ? Promise.resolve(url) : jsonp(document, url, callback).then(function(response) {
            return "data:" + response.type + ";base64," + response.content;
          }));
      }
    
      function jsonp(document, url, callback) {
        return new Promise(function(resolve, reject) {
          var s = document.createElement("script");
          var cleanup = function() {
            delete window.html2canvas.proxy[callback];
            document.body.removeChild(s);
          };
          window.html2canvas.proxy[callback] = function(response) {
            cleanup();
            resolve(response);
          };
          s.src = url;
          s.onerror = function(e) {
            cleanup();
            reject(e);
          };
          document.body.appendChild(s);
        });
      }
    
      function createCallback(useCORS) {
        return !useCORS ? "html2canvas_" + Date.now() + "_" + (++proxyCount) + "_" + Math.round(Math.random() * 100000) : "";
      }
    
      function createProxyUrl(proxyUrl, src, callback) {
        return proxyUrl + "?url=" + encodeURIComponent(src) + (callback.length ? "&callback=html2canvas.proxy." + callback : "");
      }
    
      function documentFromHTML(src) {
        return function(html) {
          var parser = new DOMParser(), doc;
          try {
            doc = parser.parseFromString(html, "text/html");
          } catch(e) {
            log("DOMParser not supported, falling back to createHTMLDocument");
            doc = document.implementation.createHTMLDocument("");
            try {
              doc.open();
              doc.write(html);
              doc.close();
            } catch(ee) {
              log("createHTMLDocument write not supported, falling back to document.body.innerHTML");
              doc.body.innerHTML = html; // ie9 doesnt support writing to documentElement
            }
          }
    
          var b = doc.querySelector("base");
          if (!b || !b.href.host) {
            var base = doc.createElement("base");
            base.href = src;
            doc.head.insertBefore(base, doc.head.firstChild);
          }
    
          return doc;
        };
      }
    
      function loadUrlDocument(src, proxy, document, width, height, options) {
        return new Proxy(src, proxy, window.document).then(documentFromHTML(src)).then(function(doc) {
          return createWindowClone(doc, document, width, height, options, 0, 0);
        });
      }
    
      exports.Proxy = Proxy;
      exports.ProxyURL = ProxyURL;
      exports.loadUrlDocument = loadUrlDocument;
    
    },{"./clone":2,"./log":13,"./utils":26,"./xhr":28}],17:[function(_dereq_,module,exports){
      var ProxyURL = _dereq_('./proxy').ProxyURL;
    
      function ProxyImageContainer(src, proxy) {
        var link = document.createElement("a");
        link.href = src;
        src = link.href;
        this.src = src;
        this.image = new Image();
        var self = this;
        this.promise = new Promise(function(resolve, reject) {
          self.image.crossOrigin = "Anonymous";
          self.image.onload = resolve;
          self.image.onerror = reject;
    
          new ProxyURL(src, proxy, document).then(function(url) {
            self.image.src = url;
          })['catch'](reject);
        });
      }
    
      module.exports = ProxyImageContainer;
    
    },{"./proxy":16}],18:[function(_dereq_,module,exports){
      var NodeContainer = _dereq_('./nodecontainer');
    
      function PseudoElementContainer(node, parent, type) {
        NodeContainer.call(this, node, parent);
        this.isPseudoElement = true;
        this.before = type === ":before";
      }
    
      PseudoElementContainer.prototype.cloneTo = function(stack) {
        PseudoElementContainer.prototype.cloneTo.call(this, stack);
        stack.isPseudoElement = true;
        stack.before = this.before;
      };
    
      PseudoElementContainer.prototype = Object.create(NodeContainer.prototype);
    
      PseudoElementContainer.prototype.appendToDOM = function() {
        if (this.before) {
          this.parent.node.insertBefore(this.node, this.parent.node.firstChild);
        } else {
          this.parent.node.appendChild(this.node);
        }
        this.parent.node.className += " " + this.getHideClass();
      };
    
      PseudoElementContainer.prototype.cleanDOM = function() {
        this.node.parentNode.removeChild(this.node);
        this.parent.node.className = this.parent.node.className.replace(this.getHideClass(), "");
      };
    
      PseudoElementContainer.prototype.getHideClass = function() {
        return this["PSEUDO_HIDE_ELEMENT_CLASS_" + (this.before ? "BEFORE" : "AFTER")];
      };
    
      PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_BEFORE = "___html2canvas___pseudoelement_before";
      PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_AFTER = "___html2canvas___pseudoelement_after";
    
      module.exports = PseudoElementContainer;
    
    },{"./nodecontainer":14}],19:[function(_dereq_,module,exports){
      var log = _dereq_('./log');
    
      function Renderer(width, height, images, options, document) {
        this.width = width;
        this.height = height;
        this.images = images;
        this.options = options;
        this.document = document;
      }
    
      Renderer.prototype.renderImage = function(container, bounds, borderData, imageContainer) {
        var paddingLeft = container.cssInt('paddingLeft'),
          paddingTop = container.cssInt('paddingTop'),
          paddingRight = container.cssInt('paddingRight'),
          paddingBottom = container.cssInt('paddingBottom'),
          borders = borderData.borders;
    
        var width = bounds.width - (borders[1].width + borders[3].width + paddingLeft + paddingRight);
        var height = bounds.height - (borders[0].width + borders[2].width + paddingTop + paddingBottom);
        this.drawImage(
          imageContainer,
          0,
          0,
          imageContainer.image.width || width,
          imageContainer.image.height || height,
          bounds.left + paddingLeft + borders[3].width,
          bounds.top + paddingTop + borders[0].width,
          width,
          height
        );
      };
    
      Renderer.prototype.renderBackground = function(container, bounds, borderData) {
        if (bounds.height > 0 && bounds.width > 0) {
          this.renderBackgroundColor(container, bounds);
          this.renderBackgroundImage(container, bounds, borderData);
        }
      };
    
      Renderer.prototype.renderBackgroundColor = function(container, bounds) {
        var color = container.color("backgroundColor");
        if (!color.isTransparent()) {
          this.rectangle(bounds.left, bounds.top, bounds.width, bounds.height, color);
        }
      };
    
      Renderer.prototype.renderBorders = function(borders) {
        borders.forEach(this.renderBorder, this);
      };
    
      Renderer.prototype.renderBorder = function(data) {
        if (!data.color.isTransparent() && data.args !== null) {
          this.drawShape(data.args, data.color);
        }
      };
    
      Renderer.prototype.renderBackgroundImage = function(container, bounds, borderData) {
        var backgroundImages = container.parseBackgroundImages();
        backgroundImages.reverse().forEach(function(backgroundImage, index, arr) {
          switch(backgroundImage.method) {
            case "url":
              var image = this.images.get(backgroundImage.args[0]);
              if (image) {
                this.renderBackgroundRepeating(container, bounds, image, arr.length - (index+1), borderData);
              } else {
                log("Error loading background-image", backgroundImage.args[0]);
              }
              break;
            case "linear-gradient":
            case "gradient":
              var gradientImage = this.images.get(backgroundImage.value);
              if (gradientImage) {
                this.renderBackgroundGradient(gradientImage, bounds, borderData);
              } else {
                log("Error loading background-image", backgroundImage.args[0]);
              }
              break;
            case "none":
              break;
            default:
              log("Unknown background-image type", backgroundImage.args[0]);
          }
        }, this);
      };
    
      Renderer.prototype.renderBackgroundRepeating = function(container, bounds, imageContainer, index, borderData) {
        var size = container.parseBackgroundSize(bounds, imageContainer.image, index);
        var position = container.parseBackgroundPosition(bounds, imageContainer.image, index, size);
        var repeat = container.parseBackgroundRepeat(index);
        switch (repeat) {
          case "repeat-x":
          case "repeat no-repeat":
            this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + borderData[3], bounds.top + position.top + borderData[0], 99999, size.height, borderData);
            break;
          case "repeat-y":
          case "no-repeat repeat":
            this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + position.left + borderData[3], bounds.top + borderData[0], size.width, 99999, borderData);
            break;
          case "no-repeat":
            this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + position.left + borderData[3], bounds.top + position.top + borderData[0], size.width, size.height, borderData);
            break;
          default:
            this.renderBackgroundRepeat(imageContainer, position, size, {top: bounds.top, left: bounds.left}, borderData[3], borderData[0]);
            break;
        }
      };
    
      module.exports = Renderer;
    
    },{"./log":13}],20:[function(_dereq_,module,exports){
      var Renderer = _dereq_('../renderer');
      var LinearGradientContainer = _dereq_('../lineargradientcontainer');
      var log = _dereq_('../log');
    
      function CanvasRenderer(width, height) {
        Renderer.apply(this, arguments);
        this.canvas = this.options.canvas || this.document.createElement("canvas");
        if (!this.options.canvas) {
          this.canvas.width = width;
          this.canvas.height = height;
        }
        this.ctx = this.canvas.getContext("2d");
        this.taintCtx = this.document.createElement("canvas").getContext("2d");
        this.ctx.textBaseline = "bottom";
        this.variables = {};
        log("Initialized CanvasRenderer with size", width, "x", height);
      }
    
      CanvasRenderer.prototype = Object.create(Renderer.prototype);
    
      CanvasRenderer.prototype.setFillStyle = function(fillStyle) {
        this.ctx.fillStyle = typeof(fillStyle) === "object" && !!fillStyle.isColor ? fillStyle.toString() : fillStyle;
        return this.ctx;
      };
    
      CanvasRenderer.prototype.rectangle = function(left, top, width, height, color) {
        this.setFillStyle(color).fillRect(left, top, width, height);
      };
    
      CanvasRenderer.prototype.circle = function(left, top, size, color) {
        this.setFillStyle(color);
        this.ctx.beginPath();
        this.ctx.arc(left + size / 2, top + size / 2, size / 2, 0, Math.PI*2, true);
        this.ctx.closePath();
        this.ctx.fill();
      };
    
      CanvasRenderer.prototype.circleStroke = function(left, top, size, color, stroke, strokeColor) {
        this.circle(left, top, size, color);
        this.ctx.strokeStyle = strokeColor.toString();
        this.ctx.stroke();
      };
    
      CanvasRenderer.prototype.drawShape = function(shape, color) {
        this.shape(shape);
        this.setFillStyle(color).fill();
      };
    
      CanvasRenderer.prototype.taints = function(imageContainer) {
        if (imageContainer.tainted === null) {
          this.taintCtx.drawImage(imageContainer.image, 0, 0);
          try {
            this.taintCtx.getImageData(0, 0, 1, 1);
            imageContainer.tainted = false;
          } catch(e) {
            this.taintCtx = document.createElement("canvas").getContext("2d");
            imageContainer.tainted = true;
          }
        }
    
        return imageContainer.tainted;
      };
    
      CanvasRenderer.prototype.drawImage = function(imageContainer, sx, sy, sw, sh, dx, dy, dw, dh) {
        if (!this.taints(imageContainer) || this.options.allowTaint) {
          this.ctx.drawImage(imageContainer.image, sx, sy, sw, sh, dx, dy, dw, dh);
        }
      };
    
      CanvasRenderer.prototype.clip = function(shapes, callback, context) {
        this.ctx.save();
        shapes.filter(hasEntries).forEach(function(shape) {
          this.shape(shape).clip();
        }, this);
        callback.call(context);
        this.ctx.restore();
      };
    
      CanvasRenderer.prototype.shape = function(shape) {
        this.ctx.beginPath();
        shape.forEach(function(point, index) {
          if (point[0] === "rect") {
            this.ctx.rect.apply(this.ctx, point.slice(1));
          } else {
            this.ctx[(index === 0) ? "moveTo" : point[0] + "To" ].apply(this.ctx, point.slice(1));
          }
        }, this);
        this.ctx.closePath();
        return this.ctx;
      };
    
      CanvasRenderer.prototype.font = function(color, style, variant, weight, size, family) {
        this.setFillStyle(color).font = [style, variant, weight, size, family].join(" ").split(",")[0];
      };
    
      CanvasRenderer.prototype.fontShadow = function(color, offsetX, offsetY, blur) {
        this.setVariable("shadowColor", color.toString())
          .setVariable("shadowOffsetY", offsetX)
          .setVariable("shadowOffsetX", offsetY)
          .setVariable("shadowBlur", blur);
      };
    
      CanvasRenderer.prototype.clearShadow = function() {
        this.setVariable("shadowColor", "rgba(0,0,0,0)");
      };
    
      CanvasRenderer.prototype.setOpacity = function(opacity) {
        this.ctx.globalAlpha = opacity;
      };
    
      CanvasRenderer.prototype.setTransform = function(transform) {
        this.ctx.translate(transform.origin[0], transform.origin[1]);
        this.ctx.transform.apply(this.ctx, transform.matrix);
        this.ctx.translate(-transform.origin[0], -transform.origin[1]);
      };
    
      CanvasRenderer.prototype.setVariable = function(property, value) {
        if (this.variables[property] !== value) {
          this.variables[property] = this.ctx[property] = value;
        }
    
        return this;
      };
    
      CanvasRenderer.prototype.text = function(text, left, bottom) {
        this.ctx.fillText(text, left, bottom);
      };
    
      CanvasRenderer.prototype.backgroundRepeatShape = function(imageContainer, backgroundPosition, size, bounds, left, top, width, height, borderData) {
        var shape = [
          ["line", Math.round(left), Math.round(top)],
          ["line", Math.round(left + width), Math.round(top)],
          ["line", Math.round(left + width), Math.round(height + top)],
          ["line", Math.round(left), Math.round(height + top)]
        ];
        this.clip([shape], function() {
          this.renderBackgroundRepeat(imageContainer, backgroundPosition, size, bounds, borderData[3], borderData[0]);
        }, this);
      };
    
      CanvasRenderer.prototype.renderBackgroundRepeat = function(imageContainer, backgroundPosition, size, bounds, borderLeft, borderTop) {
        var offsetX = Math.round(bounds.left + backgroundPosition.left + borderLeft), offsetY = Math.round(bounds.top + backgroundPosition.top + borderTop);
        this.setFillStyle(this.ctx.createPattern(this.resizeImage(imageContainer, size), "repeat"));
        this.ctx.translate(offsetX, offsetY);
        this.ctx.fill();
        this.ctx.translate(-offsetX, -offsetY);
      };
    
      CanvasRenderer.prototype.renderBackgroundGradient = function(gradientImage, bounds) {
        if (gradientImage instanceof LinearGradientContainer) {
          var gradient = this.ctx.createLinearGradient(
            bounds.left + bounds.width * gradientImage.x0,
            bounds.top + bounds.height * gradientImage.y0,
            bounds.left +  bounds.width * gradientImage.x1,
            bounds.top +  bounds.height * gradientImage.y1);
          gradientImage.colorStops.forEach(function(colorStop) {
            gradient.addColorStop(colorStop.stop, colorStop.color.toString());
          });
          this.rectangle(bounds.left, bounds.top, bounds.width, bounds.height, gradient);
        }
      };
    
      CanvasRenderer.prototype.resizeImage = function(imageContainer, size) {
        var image = imageContainer.image;
        if(image.width === size.width && image.height === size.height) {
          return image;
        }
    
        var ctx, canvas = document.createElement('canvas');
        canvas.width = size.width;
        canvas.height = size.height;
        ctx = canvas.getContext("2d");
        ctx.drawImage(image, 0, 0, image.width, image.height, 0, 0, size.width, size.height );
        return canvas;
      };
    
      function hasEntries(array) {
        return array.length > 0;
      }
    
      module.exports = CanvasRenderer;
    
    },{"../lineargradientcontainer":12,"../log":13,"../renderer":19}],21:[function(_dereq_,module,exports){
      var NodeContainer = _dereq_('./nodecontainer');
    
      function StackingContext(hasOwnStacking, opacity, element, parent) {
        NodeContainer.call(this, element, parent);
        this.ownStacking = hasOwnStacking;
        this.contexts = [];
        this.children = [];
        this.opacity = (this.parent ? this.parent.stack.opacity : 1) * opacity;
      }
    
      StackingContext.prototype = Object.create(NodeContainer.prototype);
    
      StackingContext.prototype.getParentStack = function(context) {
        var parentStack = (this.parent) ? this.parent.stack : null;
        return parentStack ? (parentStack.ownStacking ? parentStack : parentStack.getParentStack(context)) : context.stack;
      };
    
      module.exports = StackingContext;
    
    },{"./nodecontainer":14}],22:[function(_dereq_,module,exports){
      function Support(document) {
        this.rangeBounds = this.testRangeBounds(document);
        this.cors = this.testCORS();
        this.svg = this.testSVG();
      }
    
      Support.prototype.testRangeBounds = function(document) {
        var range, testElement, rangeBounds, rangeHeight, support = false;
    
        if (document.createRange) {
          range = document.createRange();
          if (range.getBoundingClientRect) {
            testElement = document.createElement('boundtest');
            testElement.style.height = "123px";
            testElement.style.display = "block";
            document.body.appendChild(testElement);
    
            range.selectNode(testElement);
            rangeBounds = range.getBoundingClientRect();
            rangeHeight = rangeBounds.height;
    
            if (rangeHeight === 123) {
              support = true;
            }
            document.body.removeChild(testElement);
          }
        }
    
        return support;
      };
    
      Support.prototype.testCORS = function() {
        return typeof((new Image()).crossOrigin) !== "undefined";
      };
    
      Support.prototype.testSVG = function() {
        var img = new Image();
        var canvas = document.createElement("canvas");
        var ctx =  canvas.getContext("2d");
        img.src = "data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg'></svg>";
    
        try {
          ctx.drawImage(img, 0, 0);
          canvas.toDataURL();
        } catch(e) {
          return false;
        }
        return true;
      };
    
      module.exports = Support;
    
    },{}],23:[function(_dereq_,module,exports){
      var XHR = _dereq_('./xhr');
      var decode64 = _dereq_('./utils').decode64;
    
      function SVGContainer(src) {
        this.src = src;
        this.image = null;
        var self = this;
    
        this.promise = this.hasFabric().then(function() {
          return (self.isInline(src) ? Promise.resolve(self.inlineFormatting(src)) : XHR(src));
        }).then(function(svg) {
          return new Promise(function(resolve) {
            window.html2canvas.svg.fabric.loadSVGFromString(svg, self.createCanvas.call(self, resolve));
          });
        });
      }
    
      SVGContainer.prototype.hasFabric = function() {
        return !window.html2canvas.svg || !window.html2canvas.svg.fabric ? Promise.reject(new Error("html2canvas.svg.js is not loaded, cannot render svg")) : Promise.resolve();
      };
    
      SVGContainer.prototype.inlineFormatting = function(src) {
        return (/^data:image\/svg\+xml;base64,/.test(src)) ? this.decode64(this.removeContentType(src)) : this.removeContentType(src);
      };
    
      SVGContainer.prototype.removeContentType = function(src) {
        return src.replace(/^data:image\/svg\+xml(;base64)?,/,'');
      };
    
      SVGContainer.prototype.isInline = function(src) {
        return (/^data:image\/svg\+xml/i.test(src));
      };
    
      SVGContainer.prototype.createCanvas = function(resolve) {
        var self = this;
        return function (objects, options) {
          var canvas = new window.html2canvas.svg.fabric.StaticCanvas('c');
          self.image = canvas.lowerCanvasEl;
          canvas
            .setWidth(options.width)
            .setHeight(options.height)
            .add(window.html2canvas.svg.fabric.util.groupSVGElements(objects, options))
            .renderAll();
          resolve(canvas.lowerCanvasEl);
        };
      };
    
      SVGContainer.prototype.decode64 = function(str) {
        return (typeof(window.atob) === "function") ? window.atob(str) : decode64(str);
      };
    
      module.exports = SVGContainer;
    
    },{"./utils":26,"./xhr":28}],24:[function(_dereq_,module,exports){
      var SVGContainer = _dereq_('./svgcontainer');
    
      function SVGNodeContainer(node, _native) {
        this.src = node;
        this.image = null;
        var self = this;
    
        this.promise = _native ? new Promise(function(resolve, reject) {
            self.image = new Image();
            self.image.onload = resolve;
            self.image.onerror = reject;
            self.image.src = "data:image/svg+xml," + (new XMLSerializer()).serializeToString(node);
            if (self.image.complete === true) {
              resolve(self.image);
            }
          }) : this.hasFabric().then(function() {
            return new Promise(function(resolve) {
              window.html2canvas.svg.fabric.parseSVGDocument(node, self.createCanvas.call(self, resolve));
            });
          });
      }
    
      SVGNodeContainer.prototype = Object.create(SVGContainer.prototype);
    
      module.exports = SVGNodeContainer;
    
    },{"./svgcontainer":23}],25:[function(_dereq_,module,exports){
      var NodeContainer = _dereq_('./nodecontainer');
    
      function TextContainer(node, parent) {
        NodeContainer.call(this, node, parent);
      }
    
      TextContainer.prototype = Object.create(NodeContainer.prototype);
    
      TextContainer.prototype.applyTextTransform = function() {
        this.node.data = this.transform(this.parent.css("textTransform"));
      };
    
      TextContainer.prototype.transform = function(transform) {
        var text = this.node.data;
        switch(transform){
          case "lowercase":
            return text.toLowerCase();
          case "capitalize":
            return text.replace(/(^|\s|:|-|\(|\))([a-z])/g, capitalize);
          case "uppercase":
            return text.toUpperCase();
          default:
            return text;
        }
      };
    
      function capitalize(m, p1, p2) {
        if (m.length > 0) {
          return p1 + p2.toUpperCase();
        }
      }
    
      module.exports = TextContainer;
    
    },{"./nodecontainer":14}],26:[function(_dereq_,module,exports){
      exports.smallImage = function smallImage() {
        return "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7";
      };
    
      exports.bind = function(callback, context) {
        return function() {
          return callback.apply(context, arguments);
        };
      };
    
      /*
       * base64-arraybuffer
       * https://github.com/niklasvh/base64-arraybuffer
       *
       * Copyright (c) 2012 Niklas von Hertzen
       * Licensed under the MIT license.
       */
    
      exports.decode64 = function(base64) {
        var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
        var len = base64.length, i, encoded1, encoded2, encoded3, encoded4, byte1, byte2, byte3;
    
        var output = "";
    
        for (i = 0; i < len; i+=4) {
          encoded1 = chars.indexOf(base64[i]);
          encoded2 = chars.indexOf(base64[i+1]);
          encoded3 = chars.indexOf(base64[i+2]);
          encoded4 = chars.indexOf(base64[i+3]);
    
          byte1 = (encoded1 << 2) | (encoded2 >> 4);
          byte2 = ((encoded2 & 15) << 4) | (encoded3 >> 2);
          byte3 = ((encoded3 & 3) << 6) | encoded4;
          if (encoded3 === 64) {
            output += String.fromCharCode(byte1);
          } else if (encoded4 === 64 || encoded4 === -1) {
            output += String.fromCharCode(byte1, byte2);
          } else{
            output += String.fromCharCode(byte1, byte2, byte3);
          }
        }
    
        return output;
      };
    
      exports.getBounds = function(node) {
        if (node.getBoundingClientRect) {
          var clientRect = node.getBoundingClientRect();
          var width = node.offsetWidth == null ? clientRect.width : node.offsetWidth;
          return {
            top: clientRect.top,
            bottom: clientRect.bottom || (clientRect.top + clientRect.height),
            right: clientRect.left + width,
            left: clientRect.left,
            width:  width,
            height: node.offsetHeight == null ? clientRect.height : node.offsetHeight
          };
        }
        return {};
      };
    
      exports.offsetBounds = function(node) {
        var parent = node.offsetParent ? exports.offsetBounds(node.offsetParent) : {top: 0, left: 0};
    
        return {
          top: node.offsetTop + parent.top,
          bottom: node.offsetTop + node.offsetHeight + parent.top,
          right: node.offsetLeft + parent.left + node.offsetWidth,
          left: node.offsetLeft + parent.left,
          width: node.offsetWidth,
          height: node.offsetHeight
        };
      };
    
      exports.parseBackgrounds = function(backgroundImage) {
        var whitespace = ' \r\n\t',
          method, definition, prefix, prefix_i, block, results = [],
          mode = 0, numParen = 0, quote, args;
        var appendResult = function() {
          if(method) {
            if (definition.substr(0, 1) === '"') {
              definition = definition.substr(1, definition.length - 2);
            }
            if (definition) {
              args.push(definition);
            }
            if (method.substr(0, 1) === '-' && (prefix_i = method.indexOf('-', 1 ) + 1) > 0) {
              prefix = method.substr(0, prefix_i);
              method = method.substr(prefix_i);
            }
            results.push({
              prefix: prefix,
              method: method.toLowerCase(),
              value: block,
              args: args,
              image: null
            });
          }
          args = [];
          method = prefix = definition = block = '';
        };
        args = [];
        method = prefix = definition = block = '';
        backgroundImage.split("").forEach(function(c) {
          if (mode === 0 && whitespace.indexOf(c) > -1) {
            return;
          }
          switch(c) {
            case '"':
              if(!quote) {
                quote = c;
              } else if(quote === c) {
                quote = null;
              }
              break;
            case '(':
              if(quote) {
                break;
              } else if(mode === 0) {
                mode = 1;
                block += c;
                return;
              } else {
                numParen++;
              }
              break;
            case ')':
              if (quote) {
                break;
              } else if(mode === 1) {
                if(numParen === 0) {
                  mode = 0;
                  block += c;
                  appendResult();
                  return;
                } else {
                  numParen--;
                }
              }
              break;
    
            case ',':
              if (quote) {
                break;
              } else if(mode === 0) {
                appendResult();
                return;
              } else if (mode === 1) {
                if (numParen === 0 && !method.match(/^url$/i)) {
                  args.push(definition);
                  definition = '';
                  block += c;
                  return;
                }
              }
              break;
          }
    
          block += c;
          if (mode === 0) {
            method += c;
          } else {
            definition += c;
          }
        });
    
        appendResult();
        return results;
      };
    
    },{}],27:[function(_dereq_,module,exports){
      var GradientContainer = _dereq_('./gradientcontainer');
    
      function WebkitGradientContainer(imageData) {
        GradientContainer.apply(this, arguments);
        this.type = imageData.args[0] === "linear" ? GradientContainer.TYPES.LINEAR : GradientContainer.TYPES.RADIAL;
      }
    
      WebkitGradientContainer.prototype = Object.create(GradientContainer.prototype);
    
      module.exports = WebkitGradientContainer;
    
    },{"./gradientcontainer":9}],28:[function(_dereq_,module,exports){
      function XHR(url) {
        return new Promise(function(resolve, reject) {
          var xhr = new XMLHttpRequest();
          xhr.open('GET', url);
    
          xhr.onload = function() {
            if (xhr.status === 200) {
              resolve(xhr.responseText);
            } else {
              reject(new Error(xhr.statusText));
            }
          };
    
          xhr.onerror = function() {
            reject(new Error("Network Error"));
          };
    
          xhr.send();
        });
      }
    
      module.exports = XHR;
    
    },{}]},{},[4])(4)
    });
    

    2、页面引用代码

    <script src="js/html2canvas.js"></script>
    <script src="js/qrcode.js"></script>
    <script>
      new QRCode(document.getElementById("code"), {
        text: "https://open.weixin.qq.com/connect/oauth2/authorize?appid=wx4d470c54ddf7b95d&redirect_uri=http://testapp.dcpai.cn/qunpai/wechat/index.html?page=auction-detail&auctionId=1781&response_type=code&scope=snsapi_base&state=#wechat_redirect",
        width: '100',
        height: '100',
        colorDark: "#000",
        colorLight: "#fff",
        correctLevel: QRCode.CorrectLevel.H
      });
    </script>
    <script>
      setTimeout(function () {
        var w = $("#shareBody").width();
        var h = $("#shareBody").height();
    
        //要将 canvas 的宽高设置成容器宽高的 2 倍
        var canvas = document.createElement("canvas");
        canvas.width = w * 2;
        canvas.height = h * 2;
        canvas.style.width = w + "px";
        canvas.style.height = h + "px";
        var context = canvas.getContext("2d");
        //然后将画布缩放,将图像放大两倍画到画布上
        context.scale(2, 2);
    
        html2canvas(document.querySelector("#shareBody"), {
          canvas: canvas,
          onrendered: function (canvas) {
            var url = canvas.toDataURL("image/png"); //base64数据
            var image = new Image();
            image.src = url;
            document.body.innerHTML = '';
            // document.body.innerHTML = '<img src="' + url + '"/>';
            document.body.appendChild(image);
            document.title = '整个页面已经是图片了~~';
            $("#shareBody img").css({"width": "100%", "height": "100%"})
            alert(document.body.innerHTML)
          }
        });
    
      }, 3000);
    
    </script>
    展开全文
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