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.

This event does not bubble.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

addEventListener("webglcontextcreationerror", (event) => { })

onwebglcontextcreationerror = (event) => { }

Event type

A WebGLContextEvent. Inherits from Event.

Event properties

This interface inherits properties from its parent interface, Event.

WebGLContextEvent.statusMessage

A read-only property containing additional information about the event.

Example

const canvas = document.getElementById("canvas");

canvas.addEventListener(
  "webglcontextcreationerror",
  (e) => {
    console.log(e.statusMessage || "Unknown error");
  },
  false,
);

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

Specifications

Browser compatibility

See also

• WebGLContextEvent
• WebGLRenderingContext.isContextLost()
• WEBGL_lose_context, WEBGL_lose_context.loseContext(), WEBGL_lose_context.restoreContext()