zyuas.com/node_modules/caniuse-db/features-json/feature-policy.json

{
  "title":"Feature Policy",
  "description":"This specification defines a mechanism that allows developers to selectively enable and disable use of various browser features and APIs. Feature Policy is deprecated and has been replaced with [Permissions Policy](/permissions-policy) and [Document Policy](/document-policy).",
  "spec":"https://www.w3.org/TR/2019/WD-feature-policy-1-20190416/",
  "status":"unoff",
  "links":[
    {
      "url":"https://feature-policy-demos.appspot.com/",
      "title":"Feature Policy Kitchen Sink Demos"
    },
    {
      "url":"https://developers.google.com/web/updates/2018/06/feature-policy",
      "title":"Introduction to Feature Policy"
    },
    {
      "url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1390801",
      "title":"Firefox implementation ticket"
    },
    {
      "url":"https://chrome.google.com/webstore/detail/feature-policy-tester-dev/pchamnkhkeokbpahnocjaeednpbpacop",
      "title":"Feature Policy Tester (Chrome DevTools Extension)"
    },
    {
      "url":"https://featurepolicy.info/",
      "title":"featurepolicy.info (Feature-Policy Playground)"
    },
    {
      "url":"https://github.com/w3c/webappsec-permissions-policy/blob/main/features.md",
      "title":"List of known features"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "JS API",
    "Other",
    "Security"
  ],
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      "47":"a #1",
      "48":"a #1",
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      "53":"a #1",
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      "62":"y",
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      "15.6-15.7":"a #2 #3",
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      "2.3":"n",
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      "4.1":"n",
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      "4.4":"n",
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      "119":"y"
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      "7.2-7.4":"n",
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      "9.2":"a #1",
      "10.1":"a #1",
      "11.1-11.2":"y",
      "12.0":"y",
      "13.0":"y",
      "14.0":"y",
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      "16.0":"y",
      "17.0":"y",
      "18.0":"y",
      "19.0":"y",
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  },
  "notes":"Standard support includes the HTTP `Feature-Policy` header, `allow` attribute on iframes and the `document.featurePolicy` JS API.",
  "notes_by_num":{
    "1":"Older Chromium browsers did not support the JS API.",
    "2":"Safari and Firefox only supports the `allow` attribute on iframes.",
    "3":"Safari doesn't support a [list of origins](https://bugs.webkit.org/show_bug.cgi?id=189901) or a [wildcard](https://bugs.webkit.org/show_bug.cgi?id=187816).",
    "4":"At least partially supports [Permissions Policy](/permissions-policy), the main replacement for this spec."
  },
  "usage_perc_y":74.31,
  "usage_perc_a":22.48,
  "ucprefix":false,
  "parent":"",
  "keywords":"feature,security,header,allow,attribute,allow attribute,attribute allow,feature-policy,document.featurePolicy,document.policy",
  "chrome_id":"5694225681219584,5190687460950016",
  "shown":true
}