contextlost and contextrestored
Limited availability
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
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 (8 months)
Specifications
- HTML Standard (#context-lost-steps), from HTML Workstream (WHATWG).