canvas.json

{
  "title":"Canvas (basic support)",
  "description":"Method of generating fast, dynamic graphics using JavaScript.",
  "spec":"https://html.spec.whatwg.org/multipage/scripting.html#the-canvas-element",
  "status":"ls",
  "links":[
    {
      "url":"https://developer.mozilla.org/en/Canvas_tutorial",
      "title":"Tutorial by Mozilla"
    },
    {
      "url":"http://www.canvasdemos.com/",
      "title":"Showcase site"
    },
    {
      "url":"http://glimr.rubyforge.org/cake/canvas.html",
      "title":"Animation kit"
    },
    {
      "url":"http://diveintohtml5.info/canvas.html",
      "title":"Another tutorial"
    },
    {
      "url":"http://explorercanvas.googlecode.com/",
      "title":"Implementation for Internet Explorer"
    },
    {
      "url":"https://raw.github.com/phiggins42/has.js/master/detect/graphics.js#canvas",
      "title":"has.js test"
    }
  ],
  "bugs":[
    {
      "description":"The Android browser does not support clipping on HTML5 canvas. See the bug filed here: http://code.google.com/p/android/issues/detail?id=21099"
    },
    {
      "description":"Older versions of iOS did not support video as a source for the canvas `drawImage()`, though it does appear to work as of iOS 8 [test case](http://jsfiddle.net/zL8KC/)"
    },
    {
      "description":"Limits of `toDataURL()` for iOS:\r\n- The maximum size for decoded GIF, PNG, and TIFF images is 3 megapixels for devices with less than 256 MB RAM and 5 megapixels for devices with greater or equal than 256 MB RAM.\r\n- The maximum size for a canvas element is 3 megapixels for devices with less than 256 MB RAM and 5 megapixels for devices with greater or equal than 256 MB RAM.\r\n- JavaScript execution time is limited to 10 seconds for each top-level entry point."
    }
  ],
  "categories":[
    "Canvas",
    "HTML5"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"p",
      "7":"p",
      "8":"p",
      "9":"y",
      "10":"y",
      "11":"y",
      "Edge":"y"
    },
    "firefox":{
      "2":"a #1",
      "3":"a #1",
      "3.5":"a #1",
      "3.6":"y",
      "4":"y",
      "5":"y",
      "6":"y",
      "7":"y",
      "8":"y",
      "9":"y",
      "10":"y",
      "11":"y",
      "12":"y",
      "13":"y",
      "14":"y",
      "15":"y",
      "16":"y",
      "17":"y",
      "18":"y",
      "19":"y",
      "20":"y",
      "21":"y",
      "22":"y",
      "23":"y",
      "24":"y",
      "25":"y",
      "26":"y",
      "27":"y",
      "28":"y",
      "29":"y",
      "30":"y",
      "31":"y",
      "32":"y",
      "33":"y",
      "34":"y",
      "35":"y",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y"
    },
    "chrome":{
      "4":"y",
      "5":"y",
      "6":"y",
      "7":"y",
      "8":"y",
      "9":"y",
      "10":"y",
      "11":"y",
      "12":"y",
      "13":"y",
      "14":"y",
      "15":"y",
      "16":"y",
      "17":"y",
      "18":"y",
      "19":"y",
      "20":"y",
      "21":"y",
      "22":"y",
      "23":"y",
      "24":"y",
      "25":"y",
      "26":"y",
      "27":"y",
      "28":"y",
      "29":"y",
      "30":"y",
      "31":"y",
      "32":"y",
      "33":"y",
      "34":"y",
      "35":"y",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y",
      "44":"y",
      "45":"y",
      "46":"y"
    },
    "safari":{
      "3.1":"a #1",
      "3.2":"a #1",
      "4":"y",
      "5":"y",
      "5.1":"y",
      "6":"y",
      "6.1":"y",
      "7":"y",
      "7.1":"y",
      "8":"y"
    },
    "opera":{
      "9":"y",
      "9.5-9.6":"y",
      "10.0-10.1":"y",
      "10.5":"y",
      "10.6":"y",
      "11":"y",
      "11.1":"y",
      "11.5":"y",
      "11.6":"y",
      "12":"y",
      "12.1":"y",
      "15":"y",
      "16":"y",
      "17":"y",
      "18":"y",
      "19":"y",
      "20":"y",
      "21":"y",
      "22":"y",
      "23":"y",
      "24":"y",
      "25":"y",
      "26":"y",
      "27":"y",
      "28":"y",
      "29":"y",
      "30":"y",
      "31":"y"
    },
    "ios_saf":{
      "3.2":"y",
      "4.0-4.1":"y",
      "4.2-4.3":"y",
      "5.0-5.1":"y",
      "6.0-6.1":"y",
      "7.0-7.1":"y",
      "8":"y",
      "8.1-8.3":"y"
    },
    "op_mini":{
      "5.0-8.0":"a"
    },
    "android":{
      "2.1":"a #1",
      "2.2":"a #1",
      "2.3":"a #1",
      "3":"y",
      "4":"y",
      "4.1":"y",
      "4.2-4.3":"y",
      "4.4":"y",
      "4.4.3-4.4.4":"y",
      "40":"y"
    },
    "bb":{
      "7":"y",
      "10":"y"
    },
    "op_mob":{
      "10":"y",
      "11":"y",
      "11.1":"y",
      "11.5":"y",
      "12":"y",
      "12.1":"y",
      "24":"y"
    },
    "and_chr":{
      "42":"y"
    },
    "and_ff":{
      "38":"y"
    },
    "ie_mob":{
      "10":"y",
      "11":"y"
    },
    "and_uc":{
      "9.9":"y"
    }
  },
  "notes":"Opera Mini supports the canvas element, but is unable to play animations or run other more complex applications.\r\n\r\nFor screen readers, IE, Chrome & Firefox support the [accessible canvas element sub-DOM](http://www.paciellogroup.com/blog/2012/06/html5-canvas-accessibility-in-firefox-13/).\r\nFirefox & Chrome also support the drawfocus ring.",
  "notes_by_num":{
    "1":"Does not support `toDataURL()`"
  },
  "usage_perc_y":90.9,
  "usage_perc_a":3.97,
  "ucprefix":false,
  "parent":"",
  "keywords":"toDataURL()",
  "ie_id":"canvas",
  "chrome_id":"5100084685438976",
  "shown":true
}