Back button shows up on interstitial when there's no page to navigate back to |
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Issue descriptionI think I saw this when trying to repro issue 779205. The basic idea is: 0. Use the --webview-safebrowsing-block-all-resources flag 1. Open Google Photos, tap menu, tap Help 2. Click one of the links 3. Observe that there is no back button (expected) 4. Click Android's back button to get out of the interstitial 5. Click a link again 6. Observe that there *is* a back button on the interstitial (unexpected) Clicking the "back to safety" button on the 2nd interstitial causes a crash (which makes sense, there's nothing to go back to). I can't quite remember, but I think we hit a DCHECK violation. --- I'll update this bug if I've written anything erroneous.
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Nov 3 2017
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Nov 10 2017
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Nov 15 2017
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Nov 29 2017
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Jan 30 2018
Unfortunately won't have time to get this for M65
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Feb 12 2018
A quick follow-up: I've only reproduced this with the --block-all-resources flag, I don't think this is a case which real users will hit often. This bug requires: - hitting at least 2 interstitials within the same session of using the app - the webview must be destroyed & recreated at least once - both safe browsing hits must be on the "initial navigation" for the webview (the first URL load after it is (re)created) Hitting all these conditions seems unlikely in practice, so I'm lowering the priority.
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Feb 18 2018
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Feb 26 2018
It is marked as RBS, could we have some update here? Thanks!
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Mar 2 2018
I'll investigate this during 67. I'm still pretty confident most users won't see this crash.
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Sep 14
I have no clue as to root cause, but this is probably something we should eventually fix.
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Sep 14
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Comment 1 by satyavat...@chromium.org
, Nov 3 2017