This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The HTMLCanvasElement.transferControlToOffscreen() method transfers control to an OffscreenCanvas object, either on the main thread or on a worker.
Syntax
OffscreenCanvas HTMLCanvasElement.transferControlToOffscreen()
Return value
An OffscreenCanvas object.
Examples
var htmlCanvas = document.createElement('canvas');
var offscreen = htmlCanvas.transferControlToOffscreen();
var gl = offscreen.getContext('webgl');
// ... some drawing using the gl context ...
// Push frames back to the original HTMLCanvasElement
gl.commit();
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'HTMLCanvasElement.transferControlToOffscreen()' in that specification. |
Living Standard |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic support | Chrome Full support 69 | Edge No support No | Firefox
Full support
44
| IE No support No | Opera No support No | Safari No support No | WebView Android No support No | Chrome Android Full support 69 | Edge Mobile No support No | Firefox Android
Full support
44
| Opera Android No support No | Safari iOS No support No | Samsung Internet Android No support No |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- Non-standard. Expect poor cross-browser support.
- Non-standard. Expect poor cross-browser support.
- User must explicitly enable this feature.
- User must explicitly enable this feature.
See also
- The interface defining this method,
HTMLCanvasElement OffscreenCanvasWebGLRenderingContext.commit()