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+{
+ "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",
+ "64":"y",
+ "65":"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",
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+ "38":"y",
+ "39":"y",
+ "40":"y",
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+ "43":"y",
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+ "48":"y",
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+ "60":"y",
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+ "62":"y",
+ "63":"y",
+ "64":"y",
+ "65":"y",
+ "66":"y",
+ "67":"y",
+ "68":"y",
+ "69":"y",
+ "70":"y",
+ "71":"y",
+ "72":"y",
+ "73":"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",
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+ "48":"y",
+ "49":"y",
+ "50":"y",
+ "51":"y",
+ "52":"y",
+ "53":"y",
+ "54":"y",
+ "55":"y",
+ "56":"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":{
+ "69":"y"
+ },
+ "and_ff":{
+ "62":"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":87.26,
+ "usage_perc_a":6.09,
+ "ucprefix":false,
+ "parent":"",
+ "keywords":"font face,unicode,unicode-range",
+ "ie_id":"",
+ "chrome_id":"",
+ "firefox_id":"",
+ "webkit_id":"",
+ "shown":true
+}
generated by cgit v1.2.3 (git 2.25.1) at 2026-10-10 08:01:05 +0000