Can I use
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Mutation events

- WD

Deprecated mechanism for listening to changes made to the DOM, replaced by Mutation Observers.

IE

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

Edge

  1. 12 - 18: Partial support
  2. 79 - 84: Partial support
  3. 85: Partial support

Firefox

  1. 2 - 5: Not supported
  2. 6 - 79: Partial support
  3. 80: Partial support
  4. 81 - 82: Partial support

Chrome

  1. 4 - 14: Support unknown
  2. 15 - 84: Partial support
  3. 85: Partial support
  4. 86 - 88: Partial support

Safari

  1. 3.1 - 3.2: Support unknown
  2. 4 - 13.1: Partial support
  3. 14: Partial support
  4. TP: Partial support

Opera

  1. 9 - 10.6: Not supported
  2. 11 - 11.5: Support unknown
  3. 11.6 - 12.1: Supported
  4. 15 - 69: Partial support
  5. 70: Partial support

iOS Safari

  1. 3.2 - 4.1: Support unknown
  2. 4.2 - 13.7: Partial support
  3. 14.0: Partial support

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 2.2: Support unknown
  2. 2.3 - 4.4.4: Partial support
  3. 81: Partial support

Blackberry Browser

  1. 7: Partial support
  2. 10: Partial support

Opera Mobile

  1. 10: Not supported
  2. 11 - 11.5: Support unknown
  3. 12 - 12.1: Supported
  4. 46: Partial support

Chrome for Android

  1. 85: Partial support

Firefox for Android

  1. 79: Partial support

IE Mobile

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

UC Browser for Android

  1. 12.12: Partial support

Samsung Internet

  1. 4 - 11.2: Partial support
  2. 12.0: Partial support

QQ Browser

  1. 10.4: Partial support

Baidu Browser

  1. 7.12: Partial support

KaiOS Browser

  1. 2.5: Partial support

See also support for Mutation Observer, which replaces mutation events and does not have the same performance drawbacks.

Resources:
MDN Web Docs - Mutation events