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
OffscreenCanvas
, the interface this constructor belongs to.