| Test transferControlToOffscreen. |
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| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". |
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| PASS Successfully created layer for offscreencanvas |
| PASS offscreenCanvas1.width is width |
| PASS offscreenCanvas1.height is height |
| PASS transferControlToOffscreen from a canvas with context throws an exception: InvalidStateError: Failed to execute 'transferControlToOffscreen' on 'HTMLCanvasElement': Cannot transfer control from a canvas that has a rendering context. |
| PASS successfullyParsed is true |
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| TEST COMPLETE |
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