Can I use
?

headers HTTP header: csp: Content-Security-Policy: base-uri

IE

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

Edge

  1. 12 - 18: Not supported
  2. 79 - 89: Supported
  3. 90: Supported

Firefox

  1. 2 - 34: Not supported
  2. 35 - 86: Supported
  3. 87: Supported
  4. 88 - 89: Supported

Chrome

  1. 4 - 39: Not supported
  2. 40 - 89: Supported
  3. 90: Supported
  4. 91 - 93: Supported

Safari

  1. 3.1 - 9.1: Not supported
  2. 10 - 13.1: Supported
  3. 14: Supported
  4. TP: Supported

Opera

  1. 10 - 26: Not supported
  2. 27 - 72: Supported
  3. 73: Supported

Safari on iOS

  1. 3.2 - 9.2: Not supported
  2. 9.3 - 13.7: Supported
  3. 14: Supported

Opera Mini

  1. all: Support unknown

Android Browser

  1. 2.1 - 4.4.4: Support unknown
  2. 89: Supported

Opera Mobile

  1. 12 - 12.1: Support unknown
  2. 62: Support unknown

Chrome for Android

  1. 89: Supported

Firefox for Android

  1. 86: Supported

UC Browser for Android

  1. 12.12: Support unknown

Samsung Internet

  1. 4 - 12.0: Support unknown
  2. 13.0: Supported

QQ Browser

  1. 10.4: Support unknown

Baidu Browser

  1. 7.12: Support unknown

KaiOS Browser

  1. 2.5: Support unknown