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Issue 866859 link

Starred by 2 users

Issue metadata

Status: Assigned
Owner:
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: iOS
Pri: 1
Type: Bug-Regression


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SlimNav-Bugs


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white blank screen is displayed for a moment while opening a new incognito tab

Project Member Reported by subhashi...@chromium.org, Jul 24

Issue description

App Version: 70.0.3501.0 canary
iOS Version:10.3.3, 11.4.1
Devices:  iPhone 6 Plus, iPhone 7 Plus, iPad Pro

Prerequisite:
Enable #slim-navigation-manager flag from chrome://flags

Steps to reproduce:
1. Launch iOS Chrome
2. Go to Menu>Incognito tab
3. Tap on the tab switcher icon
4. Tap on ‘+’ to open a new incognito tab

Observed results:
Shows about: & white blank screen is displayed for a moment while opening a new incognito tab

Expected results:
Should not display about: & white blank screen while opening a new incognito tab

Number of times you were able to reproduce: 5/5
Bug reproducible after clean install: Yes
Bug reproducible after clearing cache and cookies: Yes
Bug reproducible on Chrome Mobile on Android: NA
Bug reproducible on Safari/Firefox: Firefox: NA, Safari: NA
Bug reproducible on the current stable build :M67, No
Bug reproducible on the beta build :M68, No
Bug reproducible on the current beta channel build :M69, Yes

Type-bug-regression? Yes

Link to Image/Video:
https://drive.google.com/open?id=1LWGRaQr-Jl5qfEC2u59l0_CyvArhWuHv

 
Status: Assigned (was: Untriaged)
subhashinik@ would you be able to help bisect the issue? I see the blank screen flash in 69.0.3476.0 as well.
danyao@

Good & Bad build versions for 'about:' displayed in incognito tab:
Revision Number for 69.0.3494.0 (Good Version) - e91414c45bcd
Revision Number for 69.0.3495.0 (Bad Version) - 4d370e2ccac7

where in, white blank screen is displayed from early build of m69.
Revision Number for 69.0.3441.0 (Bad Version) - 770417246e2c
Labels: MS-Incognito
Issue 871400 has been merged into this issue.
Labels: -Pri-2 -MS-Incognito M-70 Pri-1
Owner: marq@chromium.org
P1 for M70.  If we can repro this without slim navigation manager, then we should think about pulling it into M69.
Cc: eugene...@chromium.org
I can't repro without slim nav.
Labels: -M-70 M-71
Moving to M71
Labels: ReleaseBlock-Stable
Slim-nav is not shipping in M71 so this is not an issue for M71 correct?
Cc: justincohen@chromium.org
Labels: -M-71 M-72
Labels: Proj-WKBackForwardListBlocker
Labels: -ReleaseBlock-Stable -M-72
I can reproduce this bug with slim nav disabled as well. Video attached.
white_flash_incognito.MP4
3.9 MB View Download
Labels: -Proj-WKBackForwardList -Proj-WKBackForwardListBlocker
Labels: Needs-Feedback
subhashinik@ can you retest on the latest m72 build?  Perhaps kBrowserContainerContainsNTP has masked the issue?
Labels: -Needs-Feedback
justincohen@ Tested on a latest M72(72.0.3615.0) canary build and issue is also reproducible with slim nav disabled.
Components: UI>Browser>Mobile>TabSwitcher
subhashinik@ I think this is a different bug now.  Before this was about 'about:' showing in the title (which sounded like a slim nav issue) plus a white flash in the tab grid.

We can no longer reproduce the 'about:', but we are still seeing a white flash in the tab grid, with or without slim nav enabled.  

subhashinik@ can you confirm this is correct, and update the bug?  Or are you still seeing "about" with these, or other, steps?

thanks!
Cc: marq@chromium.org
Owner: edchin@chromium.org
justincohen@

Yes, issue was about 'about:' showing in the title and a white flash in the tab grid and this issue was reproducible only with #slim-navigation-manager flag enabled.

Now, tested on latest M72 canary build and 'about:' issue is no longer reproducible with #slim-navigation-manager enabled but still seeing white flash in the tab grid with or without #slim-navigation-manager enabled.


Cc: -danyao@chromium.org -eugene...@chromium.org
Labels: M-72
Summary: white blank screen is displayed for a moment while opening a new incognito tab (was: about: & white blank screen is displayed for a moment while opening a new incognito tab)
Per subhashinik@, over to edchin@ and removed reference to 'about:' in the bug summary/

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