WEBGL_lose_context.loseContext()

The WEBGL_lose_context.loseContext() method is part of the WebGL API and allows you to simulate losing the context of a WebGLRenderingContext context.

It triggers the steps described in the WebGL specification for handling context lost. The context will remain lost until WEBGL_lose_context.restoreContext() is called.

Syntax

gl.getExtension('WEBGL_lose_context').loseContext();

Examples

With this method, you can simulate the webglcontextlost event:

var canvas = document.getElementById('canvas');
var gl = canvas.getContext('webgl');

canvas.addEventListener('webglcontextlost', function(e) {
  console.log(e); 
}, false);

gl.getExtension('WEBGL_lose_context').loseContext();

// WebGLContextEvent event with type "webglcontextlost" is logged.

Specifications

Specification Status Comment
WEBGL_lose_context
The definition of 'WEBGL_lose_context.loseContext' in that specification.
Recommendation Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic supportChrome ? Edge Full support 17Firefox Full support 22
Full support 22
No support 19 — 58
Prefixed
Prefixed Implemented with the vendor prefix: MOZ_
IE ? Opera ? Safari ? WebView Android ? Chrome Android ? Edge Mobile Full support 17Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown
Requires a vendor prefix or different name for use.
Requires a vendor prefix or different name for use.

See also

Document Tags and Contributors

Contributors to this page: fscholz, nmve, teoli
Last updated by: fscholz,