Web features explorer - contextlost and contextrestored

Web features explorer

The contextlost event for <canvas> fires when the canvas backing storage is lost, while the contextrestored event fires when it is recreated.

Browser support

Chrome 99 Released on 2022-03-01
Chrome Android 99 Released on 2022-03-01
Edge 99 Released on 2022-03-03
Firefox 125 Released on 2024-04-16
Firefox for Android 125 Released on 2024-04-16
Safari Not supported
Safari on iOS Not supported

Baseline availability blocked since April 2024 by Safari (27 months)

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MDN documentation

Specifications

HTML (#context-lost-steps), from HTML Workstream (WHATWG).

Usage (according to Chrome Platform Status)

~0.083% of page loads. More data at chromestatus.com.

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