OffscreenCanvas()

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The OffscreenCanvas() constructor returns a newly instantiated OffscreenCanvas object.

Syntax

new OffscreenCanvas(width, height);

Parameters

width
The height of the offscreen canvas.
height
The width of the offscreen canvas.

Examples

Creating a new offscreen canvas and initializing a WebGL context on it:

var offscreen = new OffscreenCanvas(256, 256);
var gl = offscreen.getContext("webgl");

Specifications

Specification Status Comment
HTML Living Standard
The definition of 'OffscreenCanvas()' in that specification.
Living Standard  

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support No support 46 (46) [1] No support No support No support
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support No support 46.0 (46) [1] No support No support No support

[1] This feature is behind a feature preference setting. In about:config, set gfx.offscreencanvas.enabled to true.

See also

Document Tags and Contributors

 Contributors to this page: adria, fscholz
 Last updated by: adria,