toDataURL/toBlob produce transparent images for ImageBitmapRenderingContext
Reported by
mysteryt...@gmail.com,
Apr 30 2018
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Issue descriptionUserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0 Steps to reproduce the problem: Open the attached web page. What is the expected behavior? It should show a 2x3 table of red-white icons. What went wrong? Two icons are missing: the images for (bitmaprenderer,toDataURL) and (bitmapRenderer,toBlob) are both transparent. Did this work before? N/A Does this work in other browsers? Yes Chrome version: 67.0.3396.18 Channel: beta OS Version: 10.0 Flash Version:
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May 2 2018
Reporter@ Thanks for the issue. Able to reproduce the issue on Mac OS 10.12.6, Windows 10 and Ubuntu 14.04 on the latest Canary 68.0.3416.0 and Stable 66.0.3359.139 by the steps mentioned in the original comment. On loading the given html page, cannot observe the 2x3 table of red-white icons This is a Non-Regression issue as this behavior is observed from M60 Chrome builds. Hence marking this as Untriaged for further updates from Dev. Thanks..
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May 3 2018
Sorry, I may not have been clear enough here. The output should like chrome_bug3_firefox.png (Firefox 59.0.3); whereas it looks like chrome_bug3_chrome.png (Chrome 67.0.3396.30) -- I've circled the missing entries in green. When the whole row is missing, as in your image, it's either because the `"bitmaprender"` context isn't supported or it lacks the `transferFromImageBitmap()` method. https://www.chromestatus.com says these features were only added in Chrome 66 so I wouldn't expect it to work before that. (FWIW chrome platform status links to https://bugs.chromium.org/p/chromium/issues/detail?id=658734 which I lack permission to read so I can't tell when it was added.)
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May 7 2018
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Jul 25
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Jul 27
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Comment 1 by susan.boorgula@chromium.org
, May 1 2018