Font unicode-range subsetting

- CR

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.

IE

  1. 5.5 - 8: Not supported
  2. 9 - 10: Partial support
  3. 11: Partial support

Edge

  1. 12 - 16: Partial support
  2. 17 - 84: Supported
  3. 85: Supported

Firefox

  1. 2 - 35: Not supported
  2. 36 - 43: Disabled by default
  3. 44 - 79: Supported
  4. 80: Supported
  5. 81 - 82: Supported

Chrome

  1. 4 - 35: Partial support
  2. 36 - 84: Supported
  3. 85: Supported
  4. 86 - 88: Supported

Safari

  1. 3.1 - 9.1: Partial support
  2. 10 - 13.1: Supported
  3. 14: Supported
  4. TP: Supported

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 22: Partial support
  3. 23 - 69: Supported
  4. 70: Supported

iOS Safari

  1. 3.2 - 9.3: Partial support
  2. 10 - 13.7: Supported
  3. 14.0: Supported

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.4.4: Partial support
  2. 81: Supported

Blackberry Browser

  1. 7: Not supported
  2. 10: Partial support

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 46: Partial support

Chrome for Android

  1. 85: Supported

Firefox for Android

  1. 79: Supported

IE Mobile

  1. 10: Partial support
  2. 11: Partial support

UC Browser for Android

  1. 12.12: Supported

Samsung Internet

  1. 4: Partial support
  2. 5 - 11.2: Supported
  3. 12.0: Supported

QQ Browser

  1. 10.4: Supported

Baidu Browser

  1. 7.12: Not supported

KaiOS Browser

  1. 2.5: Supported

Partial support indicates that unnecessary code-ranges are downloaded by the browser - see browser test matrix.

Resources:
Demo
Safari CSS Reference: unicode-range
MDN Web Docs - CSS unicode-range
Microsoft Edge feature request on UserVoice
Web Platform Docs: unicode-range