Closed Bug 1391301 Opened 7 years ago Closed 2 years ago

WebGL errors are not getting through from OffscreenCanvases

Categories

(Core :: Graphics: CanvasWebGL, defect, P5)

Product:
Core
Component:
Graphics: CanvasWebGL
Type:
defect

Tracking

()

Status:
RESOLVED WORKSFORME
Tracking Flags:
Tracking Status
firefox57 --- unaffected

People

(Reporter: jujjyl, Unassigned)

References

Details

(Whiteboard: [gfx-noted]) 

Running

> <html><meta charset="utf-8"><body><canvas id="canvas"><script>
>   document.getElementById("canvas").getContext('webgl').getParameter(42624);
> </script></body></html>

prints out the following to console, as expected:

> Error: WebGL warning: getParameter: parameter: invalid enum value <enum 0xa680>

However, when running with OffscreenCanvas (gfx.offscreencanvas.enabled;true), the following

> <html><meta charset="utf-8"><body><canvas id="canvas"><script>
>   document.getElementById("canvas").transferControlToOffscreen().getContext('webgl').getParameter(42624);
> </script></body></html>

does not print out any error diagnostics to console.

Tested on Windows 10 x64 Firefox Nightly.
Blocks: offscreen-canvas
Not sure exactly where this problem would be, but it seems like Jeff would be a good person to know.
Flags: needinfo?(jgilbert)
Whiteboard: [gfx-noted]
Offscreen canvas is not enabled in 57.
status-firefox57: affected → unaffected
Flags: needinfo?(jgilbert)
Priority: -- → P3
Priority: P3 → P5
We aren't maintaining offscreen canvas at the moment.

I can't reproduce this issue. I see the error message in both cases.

Status: NEW → RESOLVED
Closed: 2 years ago
Resolution: --- → WORKSFORME
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