Drawing of image created from Blob URL after it is revoked taints the canvas
Reported by
alvol1...@gmail.com,
Sep 14 2017
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Issue descriptionUserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36 Steps to reproduce the problem: Open an attached file locally (via file:// protocol) What this code does: 1. Creates image file blob 2. Creates image from blob URL 3. Revokes blob URL 4. Draws this image on canvas (bug here: canvas becomes tainted by cross origin data when using file:// protocol) 5. Any way to get image data (toBlob, toDataUrl, getImageData) fails What is the expected behavior? Word "success" on the page. What went wrong? Exception: "Failed to execute 'toBlob' on 'HTMLCanvasElement': Tainted canvases may not be exported." Did this work before? N/A Does this work in other browsers? Yes Chrome version: 60.0.3112.113 Channel: stable OS Version: 10.0 Flash Version:
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Sep 15 2017
@alvol1994: Able to reproduce issue on reported version 60.0.3112.113 and issue does not exist on stable 61.0.3163.91 and latest Canary 63.0.3216.0. Could you please upgrade to the Latest market available version 61.0.3163.91 by using below link and share your observation https://www.chromium.org/getting-involved/dev-channel
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Sep 15 2017
Yes, this test.html and my application are working in 61.0.3163.91 without this problem.
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Sep 15 2017
Thank you for providing more feedback. Adding requester "divya.padigela@techmahindra.com" to the cc list and removing "Needs-Feedback" label. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Sep 15 2017
Marking 'WontFix' per c#3. |
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Comment 1 by ligim...@chromium.org
, Sep 14 2017