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{
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					"10.5": "n",
					"10.6": "n",
					"11": "n",
					"11.1": "n",
					"11.5": "n",
					"11.6": "n",
					"12": "n",
					"12.1": "y",
					"15": "y x",
					"16": "y x",
					"17": "y",
					"18": "y"
				},
				"ios_saf": {
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					"4.0-4.1": "a x #1",
					"4.2-4.3": "a x #1",
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				},
				"op_mini": {
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				},
				"android": {
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					"2.3": "a x #1",
					"3": "a x #1",
					"4": "a x #1",
					"4.1": "a x #1",
					"4.2-4.3": "a x #1",
					"4.4": "y"
				},
				"bb": {
					"7": "a x #1",
					"10": "y x"
				},
				"op_mob": {
					"10": "n",
					"11": "n",
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				},
				"and_chr": {
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				"and_ff": {
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				"ie_mob": {
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			},
			"notes": "Most partial support refers to supporting an <a href=\"http://www.w3.org/TR/2009/WD-css3-flexbox-20090723/\">older version</a> of the specification or an <a href=\"http://www.w3.org/TR/2012/WD-css3-flexbox-20120322/\">older syntax</a>. For Firefox 21+ it refers to lack of flex-wrap & flex-flow support.",
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			"usage_perc_a": 37.66,
			"ucprefix": false,
			"parent": "",
			"keywords": "flex"
		},
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			"links": [{
				"url": "http://khronos.org/webgl/wiki/Getting_a_WebGL_Implementation",
				"title": "Instructions on enabling WebGL"
			}, {
				"url": "http://webkit.org/blog/603/webgl-now-available-in-webkit-nightlies/",
				"title": "Webkit blog post"
			}, {
				"url": "http://www.khronos.org/webgl/wiki/Tutorial",
				"title": "Tutorial"
			}, {
				"url": "http://hacks.mozilla.org/2009/12/webgl-draft-released-today/",
				"title": "Firefox blog post"
			}, {
				"url": "http://iewebgl.com/",
				"title": "Polyfill for IE"
			}],
			"categories": ["Canvas"],
			"stats": {
				"ie": {
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					"6": "p",
					"7": "p",
					"8": "p",
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					"11": "y"
				},
				"firefox": {
					"2": "n",
					"3": "n",
					"3.5": "n",
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					"4": "a",
					"5": "a",
					"6": "a",
					"7": "a",
					"8": "a",
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					"24": "a",
					"25": "a",
					"26": "a",
					"27": "a"
				},
				"chrome": {
					"4": "n",
					"5": "n",
					"6": "n",
					"7": "n",
					"8": "a",
					"9": "a",
					"10": "a",
					"11": "a",
					"12": "a",
					"13": "a",
					"14": "a",
					"15": "a",
					"16": "a",
					"17": "a",
					"18": "y",
					"19": "y",
					"20": "y",
					"21": "y",
					"22": "y",
					"23": "y",
					"24": "y",
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					"26": "y",
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					"32": "y"
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				"safari": {
					"3.1": "n",
					"3.2": "n",
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				"and_chr": {
					"0": "n"
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				"and_ff": {
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				},
				"ie_mob": {
					"10": "p"
				}
			},
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			"usage_perc_a": 19.68,
			"ucprefix": false,
			"parent": "canvas",
			"keywords": "web gl"
		},
		"fileapi": {
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			"description": "Method of manipulating file objects in web applications client-side, as well as programmatically selecting them and accessing their data.",
			"spec": "http://www.w3.org/TR/FileAPI/",
			"status": "wd",
			"links": [{
				"url": "https://developer.mozilla.org/en/Using_files_from_web_applications",
				"title": "MDN article"
			}, {
				"url": "http://docs.webplatform.org/wiki/apis/file",
				"title": "WebPlatform Docs"
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			"categories": ["JS API"],
			"stats": {
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					"6": "n",
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					"11": "y"
				},
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					"3.5": "n",
					"3.6": "y",
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					"11": "y",
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					"13": "y",
					"14": "y",
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					"19": "y",
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					"27": "y"
				},
				"chrome": {
					"4": "n",
					"5": "n",
					"6": "a",
					"7": "a",
					"8": "a",
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					"10": "a",
					"11": "a",
					"12": "a",
					"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",
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				},
				"safari": {
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					"3.2": "n",
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					"6.1": "y",
					"7": "y"
				},
				"opera": {
					"9": "n",
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					"10.0-10.1": "n",
					"10.5": "n",
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					"11": "n",
					"11.1": "y",
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					"12.1": "y",
					"15": "y",
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					"17": "y",
					"18": "y"
				},
				"ios_saf": {
					"3.2": "n",
					"4.0-4.1": "n",
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					"7.0": "y"
				},
				"op_mini": {
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				},
				"android": {
					"2.1": "n",
					"2.2": "n",
					"2.3": "n",
					"3": "a",
					"4": "a",
					"4.1": "a",
					"4.2-4.3": "a",
					"4.4": "y"
				},
				"bb": {
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					"10": "y"
				},
				"op_mob": {
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					"12.1": "y",
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				},
				"and_chr": {
					"0": "y"
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				"and_ff": {
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				},
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			},
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			"parent": "",
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		},
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			"status": "wd",
			"links": [{
				"url": "http://www.html5rocks.com/tutorials/webcomponents/shadowdom/",
				"title": "HTML5Rocks - Shadow DOM 101 article"
			}, {
				"url": "http://html5-demos.appspot.com/static/shadowdom-visualizer/index.html",
				"title": "Shadow DOM Visualizer"
			}],
			"categories": ["DOM", "HTML5"],
			"stats": {
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					"6": "n",
					"7": "n",
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				},
				"firefox": {
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					"3": "n",
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					"3.6": "n",
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					"5": "n",
					"6": "n",
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					"10": "n",
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					"12": "n",
					"13": "n",
					"14": "n",
					"15": "n",
					"16": "n",
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					"18": "n",
					"19": "n",
					"20": "n",
					"21": "n",
					"22": "n",
					"23": "n",
					"24": "n",
					"25": "n",
					"26": "n",
					"27": "n"
				},
				"chrome": {
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					"5": "n",
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					"12": "n",
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				},
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				"opera": {
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				},
				"ios_saf": {
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				},
				"op_mini": {
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				},
				"android": {
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					"3": "n",
					"4": "n",
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				},
				"bb": {
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				},
				"op_mob": {
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					"11": "n",
					"11.1": "n",
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					"0": "y x"
				},
				"and_chr": {
					"0": "y x"
				},
				"and_ff": {
					"0": "n"
				},
				"ie_mob": {
					"10": "n"
				}
			},
			"notes": "",
			"usage_perc_y": 33.29,
			"usage_perc_a": 0,
			"ucprefix": false,
			"parent": "",
			"keywords": "web components"
		},
		"websockets": {
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			"description": "Bidirectional communication technology for web apps",
			"spec": "http://www.w3.org/TR/websockets/",
			"status": "cr",
			"links": [{
				"url": "http://docs.webplatform.org/wiki/apis/websocket",
				"title": "WebPlatform Docs"
			}, {
				"url": "https://raw.github.com/phiggins42/has.js/master/detect/features.js#native-websockets",
				"title": "has.js test"
			}, {
				"url": "http://websocket.org/aboutwebsocket.html",
				"title": "WebSockets information"
			}, {
				"url": "http://en.wikipedia.org/wiki/WebSocket",
				"title": "Wikipedia"
			}, {
				"url": "http://updates.html5rocks.com/2011/08/What-s-different-in-the-new-WebSocket-protocol",
				"title": "Details on newer protocol"
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			"categories": ["JS API"],
			"stats": {
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					"6": "n",
					"7": "n",
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					"9": "n",
					"10": "y",
					"11": "y"
				},
				"firefox": {
					"2": "n",
					"3": "n",
					"3.5": "n",
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					"5": "a",
					"6": "y x",
					"7": "y x",
					"8": "y x",
					"9": "y x",
					"10": "y x",
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					"12": "y",
					"13": "y",
					"14": "y",
					"15": "y",
					"16": "y",
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					"18": "y",
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					"20": "y",
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					"23": "y",
					"24": "y",
					"25": "y",
					"26": "y",
					"27": "y"
				},
				"chrome": {
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					"6": "a",
					"7": "a",
					"8": "a",
					"9": "a",
					"10": "a",
					"11": "a",
					"12": "a",
					"13": "a",
					"14": "y",
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					"16": "y",
					"17": "y",
					"18": "y",
					"19": "y",
					"20": "y",
					"21": "y",
					"22": "y",
					"23": "y",
					"24": "y",
					"25": "y",
					"26": "y",
					"27": "y",
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					"29": "y",
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					"31": "y",
					"32": "y"
				},
				"safari": {
					"3.1": "n",
					"3.2": "n",
					"4": "n",
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					"6": "y",
					"6.1": "y",
					"7": "y"
				},
				"opera": {
					"9": "n",
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					"10.0-10.1": "n",
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					"12.1": "y",
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					"16": "y",
					"17": "y",
					"18": "y"
				},
				"ios_saf": {
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					"4.0-4.1": "n",
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					"5.0-5.1": "a",
					"6.0-6.1": "y",
					"7.0": "y"
				},
				"op_mini": {
					"5.0-7.0": "n"
				},
				"android": {
					"2.1": "n",
					"2.2": "n",
					"2.3": "n",
					"3": "n",
					"4": "n",
					"4.1": "n",
					"4.2-4.3": "n",
					"4.4": "y"
				},
				"bb": {
					"7": "y",
					"10": "y"
				},
				"op_mob": {
					"10": "n",
					"11": "a",
					"11.1": "a",
					"11.5": "a",
					"12": "a",
					"12.1": "y",
					"0": "y"
				},
				"and_chr": {
					"0": "y"
				},
				"and_ff": {
					"0": "y"
				},
				"ie_mob": {
					"10": "y"
				}
			},
			"notes": "Partial support refers to the websockets implementation using an older version of the protocol and/or the implementation being disabled by default (due to security issues with the older protocol).",
			"usage_perc_y": 67.46,
			"usage_perc_a": 2.62,
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				"url": "http://ie.microsoft.com/testdrive/Performance/AsyncScripts/Default.html",
				"title": "Demo"
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			"categories": ["HTML5", "DOM"],
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			"links": [{
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				"url": "http://hacks.mozilla.org/2009/07/cross-site-xmlhttprequest-with-cors/",
				"title": "Mozilla Hacks blog post"
			}, {
				"url": "https://raw.github.com/phiggins42/has.js/master/detect/features.js#native-cors-xhr",
				"title": "has.js test"
			}, {
				"url": "http://msdn.microsoft.com/en-us/library/cc288060(VS.85).aspx",
				"title": "Alternative implementation by IE8"
			}, {
				"url": "http://dev.opera.com/articles/view/dom-access-control-using-cross-origin-resource-sharing/",
				"title": "DOM access using CORS"
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			"stats": {
				"ie": {
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				"chrome": {
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					"5": "y",
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					"8": "y",
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					"10": "y",
					"11": "y",
					"12": "y",
					"13": "y",
					"14": "y",
					"15": "y",
					"16": "y",
					"17": "y",
					"18": "y",
					"19": "y",
					"20": "y",
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					"24": "y",
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					"27": "y",
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					"31": "y",
					"32": "y"
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				"safari": {
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					"6.1": "y",
					"7": "y"
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				"opera": {
					"9": "n",
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					"10.0-10.1": "n",
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				"and_chr": {
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				"and_ff": {
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				"ie_mob": {
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			"notes": "Supported somewhat in IE8 and IE9 using the XDomainRequest object (but has <a href=\" http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx\">limitations</a>)",
			"usage_perc_y": 75.51,
			"usage_perc_a": 13.52,
			"ucprefix": false,
			"parent": "",
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		"calc": {
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			"description": "Method of allowing calculated values for length units, i.e. width: calc(100% - 3em)",
			"spec": "http://www.w3.org/TR/css3-values/#calc",
			"status": "cr",
			"links": [{
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				"url": "https://developer.mozilla.org/en/CSS/-moz-calc",
				"title": "MDN article"
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				"url": "http://hacks.mozilla.org/2010/06/css3-calc/",
				"title": "Mozilla Hacks article"
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			"categories": ["CSS3"],
			"stats": {
				"ie": {
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					"9": "y",
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				},
				"firefox": {
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					"4": "y x",
					"5": "y x",
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					"7": "y x",
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					"9": "y x",
					"10": "y x",
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					"12": "y x",
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				"chrome": {
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					"7": "y"
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				"opera": {
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				"ios_saf": {
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				"op_mini": {
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				"op_mob": {
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				"and_chr": {
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				"and_ff": {
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				"title": "Addon \"HTML Ruby\" for Firefox support"
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				"title": "HTML5 Doctor article"
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				"url": "http://docs.webplatform.org/wiki/html/elements/ruby",
				"title": "WebPlatform Docs"
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				"url": "https://addons.mozilla.org/firefox/addon/1935/",
				"title": "Add-on \"XHTML Ruby Support\" for Firefox"
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				"opera": {
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			"status": "rec",
			"links": [{
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				"title": "Information page"
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				"url": "http://docs.webplatform.org/wiki/css/properties/opacity",
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				"url": "https://raw.github.com/phiggins42/has.js/master/detect/video.js#video-webm",
				"title": "has.js test"
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