GTK Inspector and inspected browser OffscreenCanvas setting mismatch Appears that the inspected browser enables OffscreenCanvas Appears that Web Inspector does not enable OffscreenCanvas Web Inspector trace recording implementation checks the operation against the canvas context prototype. https://ews-build.s3-us-west-2.amazonaws.com/GTK-WK2-Tests-EWS/0ffd515e-482/results.html https://ews-build.s3-us-west-2.amazonaws.com/GTK-WK2-Tests-EWS/0ffd515e-482/inspector/canvas/recording-offscreen-canvas-2d-full-actual.txt Test that CanvasManager is able to record actions made to offscreen 2D canvas contexts. == Running test suite: Canvas.recording2D -- Running test case: Canvas.recording2D.multipleFrames.OffscreenCanvas2D ERROR: Unknown recording type: offscreen-canvas-2d ERROR: Unknown recording type: offscreen-canvas-2d ERROR: Unknown recording type: offscreen-canvas-2d ERROR: Unknown recording type: offscreen-canvas-2d ERROR: Unknown recording type: offscreen-canvas-2d ERROR: Unknown recording type: offscreen-canvas-2d ERROR: Unknown recording type: offscreen-canvas-2d ERROR: Unknown recording type: offscreen-canvas-2d ERROR: Unknown recording type: offscreen-canvas-2d ERROR: Unknown recording type: offscreen-canvas-2d ERROR: Unknown recording type: offscreen-canvas-2d ERROR: Unknown recording type: offscreen-canvas-2d