RESOLVED MOVED 230825
It looks tabs.captureVisibleTab returns buggy image 
https://bugs.webkit.org/show_bug.cgi?id=230825
Summary It looks tabs.captureVisibleTab returns buggy image
pasta0915
Reported 2021-09-27 03:57:21 PDT
Created attachment 439340 [details] (outdated) My environment is mobile Safari 15 on iPadOS. When display Calling `chrome.tabs.captureVisibleTab` and then get
Attachments
(outdated) (151.88 KB, image/jpeg)
2021-09-27 03:57 PDT, pasta0915 		no flags
Details
Image taken by tabs.captureVisibleTab (1.00 MB, image/png)
2021-09-27 03:59 PDT, pasta0915 		no flags
Details
Screenshot taken by iPad native (5.01 MB, image/png)
2021-09-27 04:14 PDT, pasta0915 		no flags
Details
Image taken by tabs.captureVisibleTab (1.12 MB, image/png)
2021-09-27 04:15 PDT, pasta0915 		no flags
Details
marked up area to expect (818.81 KB, image/png)
2021-10-06 20:45 PDT, pasta0915 		no flags
Details
Show Obsolete (2) View All Add attachment proposed patch, testcase, etc.
pasta0915
Comment 1 2021-09-27 03:59:12 PDT
Created attachment 439341 [details] Image taken by tabs.captureVisibleTab
pasta0915
Comment 2 2021-09-27 04:12:17 PDT
I'm sorry I posted #1 not completely post by mistake. I rewrite here: My environment is mobile Safari 15 on iPadOS. When displaying like "Screenshot taken by iPad native", my extension calls `chrome.tabs.captureVisibleTab` and then it gets like "Image taken by tabs.captureVisibleTab". On Safari 15 on macOS, `chrome.tabs.captureVisibleTab` gives an image as same as the rendering user looks. It looks good because Chrome and Firefox have also the same behavior. Why Safari on iOS gives us mysterious results. Do you have any plan to fix? Thanks
pasta0915
Comment 3 2021-09-27 04:14:56 PDT
Created attachment 439342 [details] Screenshot taken by iPad native
pasta0915
Comment 4 2021-09-27 04:15:24 PDT
Created attachment 439343 [details] Image taken by tabs.captureVisibleTab
Radar WebKit Bug Importer
Comment 5 2021-09-28 10:56:58 PDT
<rdar://problem/83630466>
Brian Weinstein
Comment 6 2021-10-06 15:43:11 PDT
(In reply to pasta0915 from comment #2) > I'm sorry I posted #1 not completely post by mistake. > > I rewrite here: > > My environment is mobile Safari 15 on iPadOS. > > When displaying like "Screenshot taken by iPad native", my extension calls > `chrome.tabs.captureVisibleTab` and then it gets like "Image taken by > tabs.captureVisibleTab". > > On Safari 15 on macOS, `chrome.tabs.captureVisibleTab` gives an image as > same as the rendering user looks. It looks good because Chrome and Firefox > have also the same behavior. > > Why Safari on iOS gives us mysterious results. Do you have any plan to fix? > > Thanks Thanks for the report! What specifically is the issue you'd like us to address? Can you maybe mark up the screenshot with the parts you aren't expecting? Or just include a screenshot of what you are expecting the website to look like?
pasta0915
Comment 7 2021-10-06 20:37:47 PDT
Comment on attachment 439342 [details] Screenshot taken by iPad native I have mistaken to make it obsolete
pasta0915
Comment 8 2021-10-06 20:38:34 PDT
Comment on attachment 439341 [details] Image taken by tabs.captureVisibleTab It is deprecated
pasta0915
Comment 9 2021-10-06 20:45:04 PDT
Created attachment 440464 [details] marked up area to expect I marked up the image area which expect to receive by captureVisibleTab. and I re-organize attachments
Kate Cheney
Comment 10 2022-03-30 12:48:08 PDT
Hi there! Thanks for reporting. This looks like a bug in Safari extensions, not WebKit. I passed it along to the right people, and you can also file a bug against Safari on https://feedbackassistant.apple.com/ if you'd like.
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