contextlost and contextrestored

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

Learning resources on MDN

• HTMLCanvasElement: webglcontextlost event
• HTMLCanvasElement: webglcontextrestored event

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 ❌
• Safari on iOS ❌

Baseline availability blocked since April 2024 by Safari (10 months)

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