Clarify OffscreenCanvas.transferToImageBitmap clearing canvas#43716
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Clarify OffscreenCanvas.transferToImageBitmap clearing canvas#43716
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Josh-Cena
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Apr 8, 2026
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Josh-Cena
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Very nice. Thank you. Next time remember to submit with a clean branch.
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Description
OffscreenCanvas.transferToImageBitmap() not only creates an ImageBitmap, but also replaces the OffscreenCanvas contents with a new blank image afterward.
Also, if needed to copy content to another canvas without that transfer side effect, you can use drawImage() with the OffscreenCanvas as the source
Motivation
These changes make reader to understand current working version. For OffscreenCanvas, the update makes the side effect explicit that reduces bugs.
Additional details
Related issues and pull requests
Fixes #43687