{
  "title":"Content Security Policy Level 2",
  "description":"Mitigate cross-site scripting attacks by whitelisting allowed sources of script, style, and other resources. CSP 2 adds hash-source, nonce-source, and five new directives",
  "spec":"https://www.w3.org/TR/CSP2/",
  "status":"cr",
  "links":[
    {
      "url":"https://www.html5rocks.com/en/tutorials/security/content-security-policy/",
      "title":"HTML5Rocks article"
    },
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP",
      "title":"MDN Web Docs - Content Security Policy"
    }
  ],
  "bugs":[
    {
      "description":"Partial support in Edge refers to [broken nonce suport](https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/13246371/) which will lead to breakages since sourced script tags with a valid nonce will get blocked."
    }
  ],
  "categories":[
    "Security"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"n",
      "11":"n"
    },
    "edge":{
      "12":"n",
      "13":"n",
      "14":"n",
      "15":"a #9",
      "16":"a #9",
      "17":"a #9",
      "18":"a #9",
      "76":"y"
    },
    "firefox":{
      "2":"n",
      "3":"n",
      "3.5":"n",
      "3.6":"n",
      "4":"n",
      "5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"n",
      "11":"n",
      "12":"n",
      "13":"n",
      "14":"n",
      "15":"n",
      "16":"n",
      "17":"n",
      "18":"n",
      "19":"n",
      "20":"n",
      "21":"n",
      "22":"n",
      "23":"n",
      "24":"n",
      "25":"n",
      "26":"n",
      "27":"n",
      "28":"n",
      "29":"n",
      "30":"n",
      "31":"a #1",
      "32":"a #1",
      "33":"a #1",
      "34":"a #1",
      "35":"a #2",
      "36":"a #3",
      "37":"a #3",
      "38":"a #3",
      "39":"a #3",
      "40":"a #3",
      "41":"a #3",
      "42":"a #3",
      "43":"a #3",
      "44":"a #3",
      "45":"a #7",
      "46":"a #7",
      "47":"a #7",
      "48":"a #7",
      "49":"a #7",
      "50":"a #7",
      "51":"a #7",
      "52":"a #7",
      "53":"a #7",
      "54":"a #7",
      "55":"a #7",
      "56":"a #7",
      "57":"a #7",
      "58":"a #7",
      "59":"a #7",
      "60":"a #7",
      "61":"a #7",
      "62":"a #7",
      "63":"a #7",
      "64":"a #7",
      "65":"a #7",
      "66":"a #7",
      "67":"a #7",
      "68":"a #7",
      "69":"a #7",
      "70":"a #7",
      "71":"a #7"
    },
    "chrome":{
      "4":"n",
      "5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"n",
      "11":"n",
      "12":"n",
      "13":"n",
      "14":"n",
      "15":"n",
      "16":"n",
      "17":"n",
      "18":"n",
      "19":"n",
      "20":"n",
      "21":"n",
      "22":"n",
      "23":"n",
      "24":"n",
      "25":"n",
      "26":"n",
      "27":"n",
      "28":"n",
      "29":"n",
      "30":"n",
      "31":"n",
      "32":"n",
      "33":"n",
      "34":"n",
      "35":"n",
      "36":"a #4",
      "37":"a #4",
      "38":"a #4",
      "39":"a #5",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y",
      "44":"y",
      "45":"y",
      "46":"y",
      "47":"y",
      "48":"y",
      "49":"y",
      "50":"y",
      "51":"y",
      "52":"y",
      "53":"y",
      "54":"y",
      "55":"y",
      "56":"y",
      "57":"y",
      "58":"y",
      "59":"y",
      "60":"y",
      "61":"y",
      "62":"y",
      "63":"y",
      "64":"y",
      "65":"y",
      "66":"y",
      "67":"y",
      "68":"y",
      "69":"y",
      "70":"y",
      "71":"y",
      "72":"y",
      "73":"y",
      "74":"y",
      "75":"y",
      "76":"y",
      "77":"y",
      "78":"y",
      "79":"y",
      "80":"y"
    },
    "safari":{
      "3.1":"n",
      "3.2":"n",
      "4":"n",
      "5":"n",
      "5.1":"n",
      "6":"n",
      "6.1":"n",
      "7":"n",
      "7.1":"n",
      "8":"n",
      "9":"n",
      "9.1":"n",
      "10":"y",
      "10.1":"y",
      "11":"y",
      "11.1":"y",
      "12":"y",
      "12.1":"y",
      "13":"y",
      "TP":"y"
    },
    "opera":{
      "9":"n",
      "9.5-9.6":"n",
      "10.0-10.1":"n",
      "10.5":"n",
      "10.6":"n",
      "11":"n",
      "11.1":"n",
      "11.5":"n",
      "11.6":"n",
      "12":"n",
      "12.1":"n",
      "15":"n",
      "16":"n",
      "17":"n",
      "18":"n",
      "19":"n",
      "20":"n",
      "21":"n",
      "22":"n",
      "23":"a #4",
      "24":"a #4",
      "25":"a #4",
      "26":"a #5",
      "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",
      "47":"y",
      "48":"y",
      "49":"y",
      "50":"y",
      "51":"y",
      "52":"y",
      "53":"y",
      "54":"y",
      "55":"y",
      "56":"y",
      "57":"y",
      "58":"y",
      "60":"y",
      "62":"y"
    },
    "ios_saf":{
      "3.2":"n",
      "4.0-4.1":"n",
      "4.2-4.3":"n",
      "5.0-5.1":"n",
      "6.0-6.1":"n",
      "7.0-7.1":"n",
      "8":"n",
      "8.1-8.4":"n",
      "9.0-9.2":"n",
      "9.3":"n",
      "10.0-10.2":"y",
      "10.3":"y",
      "11.0-11.2":"y",
      "11.3-11.4":"y",
      "12.0-12.1":"y",
      "12.2-12.3":"y",
      "13":"y"
    },
    "op_mini":{
      "all":"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":"n",
      "4.4.3-4.4.4":"n",
      "76":"y"
    },
    "bb":{
      "7":"n",
      "10":"n"
    },
    "op_mob":{
      "10":"n",
      "11":"n",
      "11.1":"n",
      "11.5":"n",
      "12":"n",
      "12.1":"n",
      "46":"y"
    },
    "and_chr":{
      "76":"y"
    },
    "and_ff":{
      "68":"a #6"
    },
    "ie_mob":{
      "10":"n",
      "11":"n"
    },
    "and_uc":{
      "12.12":"n"
    },
    "samsung":{
      "4":"y",
      "5.0-5.4":"y",
      "6.2-6.4":"y",
      "7.2-7.4":"y",
      "8.2":"y",
      "9.2":"y"
    },
    "and_qq":{
      "1.2":"y"
    },
    "baidu":{
      "7.12":"y"
    },
    "kaios":{
      "2.5":"a #7"
    }
  },
  "notes":"",
  "notes_by_num":{
    "1":"Firefox 31-34 is missing the plugin-types, child-src, frame-ancestors, base-uri, and form-action directives.",
    "2":"Firefox 35 is missing the plugin-types, child-src, frame-ancestors, and form-action directives.",
    "3":"Firefox 36-44 is missing the plugin-types and child-src directives.",
    "4":"Chrome 36-38 & Opera 23-25 are missing the plugin-types, child-src, frame-ancestors, base-uri, and form-action directives.",
    "5":"Chrome 39 and Opera 26 are missing the plugin-types, child-src, base-uri, and form-action directives.",
    "6":"Firefox 38 on Android is missing the child-src directive.",
    "7":"Firefox 45+ is missing the plugin-types directive.",
    "9":"Edge has broken nonce support as it ignores nonces on sourced scripts."
  },
  "usage_perc_y":83.39,
  "usage_perc_a":6.84,
  "ucprefix":false,
  "parent":"",
  "keywords":"csp,header,nonce,hash",
  "ie_id":"contentsecuritypolicylevel2",
  "chrome_id":"4957003285790720",
  "firefox_id":"",
  "webkit_id":"specification-content-security-policy-level-2",
  "shown":true
}