Can I use
?

headers HTTP header: Content-Security-Policy: block-all-mixed-content

IE

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

Edge

  1. ✅ 12 - 133: Supported
  2. ✅ 134: Supported

Firefox

  1. ❌ 2 - 47: Not supported
  2. ✅ 48 - 121: Supported
  3. ❌ 122 - 135: Not supported
  4. ❌ 136: Not supported
  5. ❌ 137 - 139: Not supported

Chrome

  1. ❌ 4 - 43: Not supported
  2. ✅ 44 - 133: Supported
  3. ✅ 134: Supported
  4. ✅ 135 - 137: Supported

Safari

  1. ❌ 3.1 - 9.1: Not supported
  2. ✅ 10 - 18.2: Supported
  3. ✅ 18.3: Supported
  4. ✅ 18.4 - TP: Supported

Opera

  1. ❌ 10 - 30: Not supported
  2. ✅ 31 - 116: Supported
  3. ✅ 117: Supported

Safari on iOS

  1. ❌ 3.2 - 9.3: Not supported
  2. ✅ 10 - 18.2: Supported
  3. ✅ 18.3: Supported
  4. ✅ 18.4: Supported

Opera Mini

  1. ﹖ all: Support unknown

Android Browser

  1. ❌ 2.1 - 4.4.4: Not supported
  2. ✅ 134: Supported

Opera Mobile

  1. ❌ 12 - 12.1: Not supported
  2. ✅ 80: Supported

Chrome for Android

  1. ✅ 134: Supported

Firefox for Android

  1. ❌ 136: Not supported

UC Browser for Android

  1. ﹖ 15.5: Support unknown

Samsung Internet

  1. ✅ 4 - 26: Supported
  2. ✅ 27: Supported

QQ Browser

  1. ﹖ 14.9: Support unknown

Baidu Browser

  1. ﹖ 13.52: Support unknown

KaiOS Browser

  1. ﹖ 2.5: Support unknown
  2. ﹖ 3: Support unknown