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Touch events offset on various pages some of the time.
Reported by
mccarthy...@gmail.com,
Jun 7 2018
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Issue descriptionExample URL: Steps to reproduce the problem: I'm seeing similar issues to https://bugs.chromium.org/p/chromium/issues/detail?id=825765 except the issue can occur on regular pages. Touch events are sometimes offset by an amount similar to the height of the top controls. If I scroll to change the visibility of the top controls then the page and the touch events line up again. Most of the time the touch event occours above where I tap but it can appear below too. I can often reproduce this on YouTube where the missed targets are obvious because the mobile site has many controls close together. It could be confirmation bias but it seems much easier to reproduce in Incognito mode. Refreshing the page fixes the issue. Issue 825765 states that changes are coming for M68 but I'm using Dev 68.0.3440.14 and also still see this issue on the interstitials page such as http://expired.badssl.com/ and this bug is different because the issue occours on normal pages. Interesting if I zoom in super far on the interstitial the the touches line up better, although still not 100% correctly. Full chrome://version Google Chrome 68.0.3440.14 (Official Build) dev (32-bit) Revision 6a244aa6611e57d2f3adff0409099923be1d5fe9-refs/branch-heads/3440@{#125} OS Android 8.1.0; Nexus 6P Build/OPM6.171019.030.B1 Google Play services SDK=11200000; Installed=12685023; Access=1p JavaScript V8 6.8.275.4 User Agent Mozilla/5.0 (Linux; Android 8.1.0; Nexus 6P Build/OPM6.171019.030.B1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.14 Mobile Safari/537.36 Command Line --use-mobile-user-agent --top-controls-show-threshold=0.5 --top-controls-hide-threshold=0.5 --use-mobile-user-agent --enable-pinch --enable-viewport --validate-input-event-stream --enable-longpress-drag-selection --touch-selection-strategy=direction --main-frame-resizes-are-orientation-changes --disable-composited-antialiasing --enable-dom-distiller --flag-switches-begin --site-per-process --enable-suggestions-with-substring-match --enable-tcp-fastopen --reader-mode-heuristics=none --reduced-referrer-granularity --show-saved-copy=primary --enable-features=MarkHttpAs,OfflinePagesShowAlternateDinoPage --disable-features=NTPArticleSuggestions,NTPAssetDownloadSuggestions,NTPBookmarkSuggestions --flag-switches-end Executable Path No such file or directory Profile Path /data/user/0/com.chrome.dev/app_chrome/Default Variations 411b6d4e-3f4a17df 1d8c7c89-3f4a17df 7eb20865-3f4a17df 45514eb0-3f4a17df 8b81f22b-3f4a17df 609c5d64-3f4a17df 288ddd9a-3f4a17df 853359fa-3f4a17df d01ab0d3-2e200496 1a0d11d4-f23d1dea b7e2524c-f23d1dea da89714-4ad60575 b1681d28-1410f10 9041608a-f23d1dea 1e528f0f-f23d1dea ca05d627-3f4a17df 717d9da7-f23d1dea d35aec66-3f4a17df 236d5d9e-694ae69f 47e5d3db-3d47f4f4 77207729-e0e232cc dc462a28-5c943877 125b7f68-26e7b859 d442dfb7-41afa35c 1149accc-f23d1dea 6557d030-f23d1dea a582a1b8-ad75ce17 e9de5187-b21ac074 3042ad4b-59e92cae 63a99ffd-3f4a17df 41a7f344-ca7d8d80 44827ee5-f23d1dea 5e3a236d-59e286d0 345b5b61-3f4a17df 20ccf1f0-ca7d8d80 b0f37b08-1e74887e 9773d3bd-ca7d8d80 93731dca-cdcbcaf4 c992f345-4ad60575 c157e591-3f4a17df e34691ba-f23d1dea 889b4d5d-3f4a17df 9e5c75f1-d511e62 85663a5d-d4dfdd4e f79cb77b-3f4a17df 566db8be-5c943877 2c45a3a5-c0eabc8d 4ea303a6-9f93d4fc dab8c208-ba47aa35 514f6bcf-1efb3fde bcc34a89-3f4a17df 3d7e3f6a-2eb01455 6e6e0c7e-f23d1dea d92562a9-cfe3c2ea f6b41a91-f23d1dea 2c1d398c-f23d1dea 6973a1cf-3f4a17df 4932440-f23d1dea 3227ca1f-3f4a17df 247c1e6d-f23d1dea da460ac8-f23d1dea 30ab2dd8-cf4f6ead c332d3b5-f23d1dea 5a42b5d9-3f4a17df 344833e9-473e8c2e 3f273a97-e3ad1896 4f864ce1-85fb2903 4bc337ce-69465896 9a2f4e5b-ca7d8d80 494d8760-52325d43 3ac60855-486e2a9c 4442aae2-75cb33fc ed1d377-e1cc0f14 12e17bc5-e1cc0f14 75f0f0a0-e1cc0f14 e7e71889-4ad60575 6e3b857e-f23d1dea 3a4029d-3a4029d bbb8f811-3f4a17df 1e902a37-3f4a17df cc73f8a1-a3a14831 8834fcca-cf4f6ead What is the expected behavior? What went wrong? Touches are offset vertically from the finger. Does it occur on multiple sites: Yes Is it a problem with a plugin? No Did this work before? Yes Does this work in other browsers? Yes Chrome version: 68.0.3440.14 Channel: dev OS Version: 8.1.0 Flash Version: I know that because I don't have an 100% way to reproduce this it's difficult but if there's any extra logging I can turn on or build to run that may help I'm happy to.
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Jun 8 2018
This issue seems to be a dupe of issue 825765 . Hence merging into it, please feel free to undupe if not the case. Thanks!!
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Jun 8 2018
My impression of issue 825765 is that it was focused on the interstitial touch events. I filled this issue because I am seeing touch event offsets on interstitials AND normal pages. Comment 21 on that issue did seem to be related to this but that discussion went nowhere. Thanks.
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Jun 14 2018
Re-opening this since 825765 is just for interstitials, and both the current workaround and the WIP fix won't change this for regular sites. Also, the current workaround landed before 68, so this seems like a similar problem with a different cause.
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Jun 14 2018
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Jun 21 2018
Reporter, do you have any url that could show this problem? I don't seem to be seeing the same problem. Ideally a small example would be perfect.
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Jun 22 2018
Unfortunately the issue doesn't always appear. It seems more commons after you have scrolled up and down a bit in a page or followed a few links I'm not too sure. I managed to get a video of the issue though. This was on https://www.troyhunt.com/enhancing-pwned-passwords-privacy-by-exclusively-supporting-anonymity/ but this page doesn't always have this issue and the issue can appear on any website. Chrome Dev is now also at version 69.0.3464.0. https://youtu.be/GsRGXmLCHZw This video shows the touch events with the Android developer menu setting. I show both it working and with the offset, depending on if the top controls are hidden or not.
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Jun 22 2018
Thank you for providing more feedback. Adding the requester to the cc list. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Jun 28 2018
bokan@ from the video it does seem that the delta offset is about the same as the url bar that hides or reappears. Could that be related at all?
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Jul 4
I think this is issue 848122 - should be fixed soon. |
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Comment 1 by pnangunoori@chromium.org
, Jun 8 2018