font-unicode-range.json

{
  "title":"Font unicode-range subsetting",
  "description":"This @font-face descriptor defines the set of Unicode codepoints that may be supported by the font face for which it is declared. The descriptor value is a comma-delimited list of Unicode range (<urange>) values. The union of these ranges defines the set of codepoints that serves as a hint for user agents when deciding whether or not to download a font resource for a given text run.",
  "spec":"https://drafts.csswg.org/css-fonts/#unicode-range-desc",
  "status":"cr",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/unicode-range",
      "title":"MDN Web Docs - CSS unicode-range"
    },
    {
      "url":"https://developer.apple.com/library/safari/documentation/AppleApplications/Reference/SafariCSSRef/Articles/StandardCSSProperties.html#//apple_ref/css/property/unicode-range",
      "title":"Safari CSS Reference: unicode-range"
    },
    {
      "url":"https://www.webplatform.org/docs/css/properties/unicode-range",
      "title":"Web Platform Docs: unicode-range"
    },
    {
      "url":"http://jsbin.com/jeqoguzeye/1/edit?html,output",
      "title":"Demo"
    },
    {
      "url":"https://wpdev.uservoice.com/forums/257854-microsoft-edge-developer/suggestions/6510254-unicode-range",
      "title":"Microsoft Edge feature request on UserVoice"
    }
  ],
  "bugs":[
    {
      "description":"Firefox 37- [ignores the descriptor](https://developer.mozilla.org/en-US/docs/Web/CSS/unicode-range#Browser_compatibility) and the at-rule is then applied to the whole range of code points."
    },
    {
      "description":"IE ignores the unicode-range if the U is lowercase e.g 'u+0061'."
    }
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"a",
      "10":"a",
      "11":"a"
    },
    "edge":{
      "12":"a",
      "13":"a",
      "14":"a",
      "15":"a",
      "16":"a",
      "17":"y",
      "18":"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":"n",
      "32":"n",
      "33":"n",
      "34":"n",
      "35":"n",
      "36":"n d #1",
      "37":"n d #1",
      "38":"n d #1",
      "39":"n d #1",
      "40":"n d #1",
      "41":"n d #1",
      "42":"n d #1",
      "43":"n d #1",
      "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"
    },
    "chrome":{
      "4":"a",
      "5":"a",
      "6":"a",
      "7":"a",
      "8":"a",
      "9":"a",
      "10":"a",
      "11":"a",
      "12":"a",
      "13":"a",
      "14":"a",
      "15":"a",
      "16":"a",
      "17":"a",
      "18":"a",
      "19":"a",
      "20":"a",
      "21":"a",
      "22":"a",
      "23":"a",
      "24":"a",
      "25":"a",
      "26":"a",
      "27":"a",
      "28":"a",
      "29":"a",
      "30":"a",
      "31":"a",
      "32":"a",
      "33":"a",
      "34":"a",
      "35":"a",
      "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",
      "59":"y",
      "60":"y",
      "61":"y",
      "62":"y",
      "63":"y",
      "64":"y",
      "65":"y",
      "66":"y",
      "67":"y",
      "68":"y",
      "69":"y",
      "70":"y"
    },
    "safari":{
      "3.1":"a",
      "3.2":"a",
      "4":"a",
      "5":"a",
      "5.1":"a",
      "6":"a",
      "6.1":"a",
      "7":"a",
      "7.1":"a",
      "8":"a",
      "9":"a",
      "9.1":"a",
      "10":"y",
      "10.1":"y",
      "11":"y",
      "11.1":"y",
      "12":"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":"a",
      "16":"a",
      "17":"a",
      "18":"a",
      "19":"a",
      "20":"a",
      "21":"a",
      "22":"a",
      "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",
      "47":"y",
      "48":"y",
      "49":"y",
      "50":"y",
      "51":"y",
      "52":"y",
      "53":"y"
    },
    "ios_saf":{
      "3.2":"a",
      "4.0-4.1":"a",
      "4.2-4.3":"a",
      "5.0-5.1":"a",
      "6.0-6.1":"a",
      "7.0-7.1":"a",
      "8":"a",
      "8.1-8.4":"a",
      "9.0-9.2":"a",
      "9.3":"a",
      "10.0-10.2":"y",
      "10.3":"y",
      "11.0-11.2":"y",
      "11.3-11.4":"y",
      "12":"y"
    },
    "op_mini":{
      "all":"n"
    },
    "android":{
      "2.1":"a",
      "2.2":"a",
      "2.3":"a",
      "3":"a",
      "4":"a",
      "4.1":"a",
      "4.2-4.3":"a",
      "4.4":"a",
      "4.4.3-4.4.4":"a",
      "67":"y"
    },
    "bb":{
      "7":"n",
      "10":"a"
    },
    "op_mob":{
      "10":"n",
      "11":"n",
      "11.1":"n",
      "11.5":"n",
      "12":"n",
      "12.1":"n",
      "46":"a"
    },
    "and_chr":{
      "67":"y"
    },
    "and_ff":{
      "60":"y"
    },
    "ie_mob":{
      "10":"a",
      "11":"a"
    },
    "and_uc":{
      "11.8":"y"
    },
    "samsung":{
      "4":"a",
      "5":"y",
      "6.2":"y",
      "7.2":"y"
    },
    "and_qq":{
      "1.2":"y"
    },
    "baidu":{
      "7.12":"n"
    }
  },
  "notes":"Partial support indicates that unnecessary code-ranges are downloaded by the browser - see [browser test matrix](https://docs.google.com/a/chromium.org/spreadsheets/d/18h-1gaosu4-KYxH8JUNL6ZDuOsOKmWfauoai3CS3hPY/edit?pli=1#gid=0).",
  "notes_by_num":{
    "1":"Can be enabled in Firefox using the `layout.css.unicode-range.enabled` flag"
  },
  "usage_perc_y":86.77,
  "usage_perc_a":7.23,
  "ucprefix":false,
  "parent":"",
  "keywords":"font face,unicode,unicode-range",
  "ie_id":"",
  "chrome_id":"",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}