Web/API/HTMLCanvasElement/transferControlToOffscreen

This is an experimental technologyCheck 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 StandardThe definition of 'HTMLCanvasElement.transferControlToOffscreen()' in that specification.	Living Standard

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`transferControlToOffscreen` Experimental'	Chrome Full support 69	Edge Full support 79	Firefox Full support 44 Disabled' Full support 44 Disabled' Disabled' From version 44: this feature is behind the `gfx.offscreencanvas.enabled` preference. To change preferences in Firefox, visit about:config.	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android Full support 69	Firefox Android Full support 44 Disabled' Full support 44 Disabled' Disabled' From version 44: this feature is behind the `gfx.offscreencanvas.enabled` preference. To change preferences in Firefox, visit about:config.	Opera Android No support No	Safari iOS No support No	Samsung Internet Android Full support 10.0

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.
User must explicitly enable this feature.': User must explicitly enable this feature.