Can I use
?

headers HTTP header: Cache-Control: `stale-while-revalidate`

IE

  1. 6 - 10: Not supported
  2. 11: Not supported

Edge

  1. 12 - 18: Not supported
  2. 79 - 93: Supported
  3. 94: Supported

Firefox

  1. 2 - 67: Not supported
  2. 68 - 92: Supported
  3. 93: Supported
  4. 94 - 95: Supported

Chrome

  1. 4 - 74: Not supported
  2. 75 - 93: Supported
  3. 94: Supported
  4. 95 - 97: Supported

Safari

  1. 3.1 - 14.1: Not supported
  2. 15: Not supported
  3. TP: Support unknown

Opera

  1. 10 - 79: Not supported
  2. 80: Not supported

Safari on iOS

  1. 3.2 - 14.8: Not supported
  2. 15: Not supported

Opera Mini

  1. all: Support unknown

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 94: Supported

Opera Mobile

  1. 12 - 12.1: Not supported
  2. 64: Not supported

Chrome for Android

  1. 94: Supported

Firefox for Android

  1. 92: Supported

UC Browser for Android

  1. 12.12: Support unknown

Samsung Internet

  1. 4 - 10.1: Not supported
  2. 11.1 - 14.0: Supported
  3. 15.0: Supported

QQ Browser

  1. 10.4: Support unknown

Baidu Browser

  1. 7.12: Support unknown

KaiOS Browser

  1. 2.5: Support unknown