Web features explorer

Mutation events

This feature is discouraged — Mutation events negatively impact performance and they were selected for removal from the web as part of Interop 2025.

Consider using MutationObserver instead.

For more information, see: TR/2024/WD-uievents-20240906/#legacy-mutationevent-events (W3C) , web-platform-tests/interop/issues/784 (GitHub)

Mutation events like DOMSubtreeModified, DOMNodeInserted, or DOMNodeRemoved fire when DOM changes occur.

Browser support

  • Chrome Not supported Bugs: 40268638
  • Chrome Android Not supported
  • Edge Not supported
  • Firefox Not supported
  • Firefox for Android Not supported
  • Safari Not supported
  • Safari on iOS Not supported

MDN documentation

Specifications

Interop

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