Can I use
?

CustomEvent API: Available in workers

IE

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

Edge

  1. 12 - 16: Not supported
  2. 17 - 119: Supported
  3. 120: Supported

Firefox

  1. 2 - 47: Not supported
  2. 48 - 119: Supported
  3. 120: Supported
  4. 121 - 123: Supported

Chrome

  1. 4 - 42: Not supported
  2. 43 - 119: Supported
  3. 120: Supported
  4. 121 - 123: Supported

Safari

  1. 3.1 - 11.1: Not supported
  2. 12 - 17.0: Supported
  3. 17.1: Supported
  4. 17.2 - TP: Supported

Opera

  1. 10 - 29: Not supported
  2. 30 - 103: Supported
  3. 104: Supported

Safari on iOS

  1. 3.2 - 11.4: Not supported
  2. 12 - 17.0: Supported
  3. 17.1: Supported
  4. 17.2: Supported

Opera Mini

  1. all: Support unknown

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 119: Supported

Opera Mobile

  1. 12 - 12.1: Not supported
  2. 73: Supported

Chrome for Android

  1. 119: Supported

Firefox for Android

  1. 119: Supported

UC Browser for Android

  1. 15.5: Support unknown

Samsung Internet

  1. 4 - 22: Supported
  2. 23: Supported

QQ Browser

  1. 13.1: Support unknown

Baidu Browser

  1. 13.18: Support unknown

KaiOS Browser

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