{
  "title":"Custom Elements v1",
  "description":"Method of defining new HTML tags.",
  "spec":"https://html.spec.whatwg.org/multipage/scripting.html#custom-elements",
  "status":"ls",
  "links":[
    {
      "url":"https://bugzilla.mozilla.org/show_bug.cgi?id=889230",
      "title":"Firefox tracking bug: Implement Custom Elements (from Web Components)"
    },
    {
      "url":"http://status.modern.ie/customelements",
      "title":"IE Web Platform Status and Roadmap: Custom Elements"
    },
    {
      "url":"https://developers.google.com/web/fundamentals/primers/customelements/",
      "title":"Google Developers - Custom elements v1: reusable web components"
    },
    {
      "url":"https://github.com/webcomponents/webcomponentsjs/tree/v1/src/CustomElements/v1",
      "title":"customElements.define polyfill"
    },
    {
      "url":"https://webkit.org/blog/7027/introducing-custom-elements/",
      "title":"WebKit Blog: Introducing Custom Elements"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "DOM",
    "HTML5"
  ],
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      "2.1":"n",
      "2.2":"n",
      "2.3":"n",
      "3":"n",
      "4":"n",
      "4.1":"n",
      "4.2-4.3":"n",
      "4.4":"n",
      "4.4.3-4.4.4":"n",
      "62":"a #1"
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    "bb":{
      "7":"n",
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    "and_chr":{
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      "10":"n",
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    "and_uc":{
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    "baidu":{
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  },
  "notes":"Chrome 36+/Opera 20+ implemented a previous version of Custom Elements (v0) that used `.registerElement()`. Other browsers are implementing v1, `window.customElements.define()`.",
  "notes_by_num":{
    "1":"Supports \"Autonomous custom elements\" but not \"Customized built-in elements\"",
    "2":"Enabled through the \"dom.webcomponents.enabled\" or \"dom.webcomponents.customelements.enabled\" preference in about:config"
  },
  "usage_perc_y":10.21,
  "usage_perc_a":67.44,
  "ucprefix":false,
  "parent":"",
  "keywords":"web components,custom elements",
  "ie_id":"customelements",
  "chrome_id":"4696261944934400",
  "firefox_id":"custom-elements",
  "webkit_id":"feature-custom-elements",
  "shown":true
}