ToggleEvent source

The source property of a ToggleEvent object is the element which triggered the toggle event to fire for a popover, <dialog>, or <details> element, if applicable.

Baseline Status: Achieved Newly Available on May 11, 2026 across core engines.

Desktop Browser Engine Support

Google Chrome

140

Supported

Mozilla Firefox

145

Supported

Apple Safari

26.5

Supported

Microsoft Edge

140

Supported

Mobile Browser Engine Support

Chrome Android

140

Firefox Android

145

Safari iOS

26.5

Specifications and References

Specification ↗ Feature XML ↗

MDN Browser Compat Data Keys:

api.ToggleEvent.source ↗