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HTMLCanvasElement: webglcontextcreationerror event

The webglcontextcreationerror event of the WebGL API is fired if the user agent is unable to create a WebGLRenderingContext context.

This event has a WebGLContextEvent.statusMessage property, which can contain a platform dependent string with more information about the failure.

Bubbles Yes
Cancelable Yes
Interface WebGLContextEvent
Event handler property none

Example

var canvas = document.getElementById('canvas');

canvas.addEventListener('webglcontextcreationerror', function(e) {
  console.log(e.statusMessage || 'Unknown error');
}, false);

var gl = canvas.getContext('webgl');
// logs statusMessage or "Unknown error" if unable to create WebGL context

Specifications

Specification
WebGL Specification
# 5.15.4

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
webglcontextcreationerror_event
9
12
49
11
12
5.1
≤37
25
49
12
8
1.5

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/webglcontextcreationerror_event