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Issue 923664 link

Starred by 1 user
Status: Assigned
Owner:
chrishtr@chromium.org
Cc:
vamshi.kommuri@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows , Mac
Pri: 1
Type: Bug-Regression



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Some JS not executed any more without any error in console

Reported by mid...@gmail.com, Jan 19 (3 days ago) 
Chrome Version       : 72.0.3626.53 (debian buster)
URL : https://feuerwehr-eisolzried.de/
Behavior in Safari 4.x/5.x: unknown
Behavior in Firefox 60 ESR: working flawlessly

What steps will reproduce the problem?
(1) load URL
(2) Calendar JS under "Termine" and Chat under "Chat" not executed/showing
(3) no error shown in Console

With previous version 72.0.3626.6 it worked. Chrome 71 workes, too

Comment 1 by woxxom@gmail.com, Jan 19 (3 days ago) 

Bisected to r613625 = 5aeac688156a067eeac628f056e05065134fcc2e = crrev.com/c/1359692 by chrishtr@chromium.org
"[IO] Return correct non-empty value in slow path with effects."
Landed in 73.0.3631.0
Merged to 72.0.3626.8

In good builds #calendar element is captured in window.observer = new IntersectionObserver, in bad builds it's not.
Let's wait for chrishtr@ to clarify the new behavior.

Comment 2 by susan.boorgula@chromium.org, Jan 20 (2 days ago)

Labels: Needs-Triage-M72 Needs-Bisect

Comment 3 by vamshi.kommuri@chromium.org, Yesterday (44 hours ago)

Cc: vamshi.kommuri@chromium.org
Components: UI>Browser
Labels: -Type-Bug -Pri-3 -Needs-Bisect RegressedIn-72 Triaged-ET Target-72 Target-73 M-72 FoundIn-71 FoundIn-73 FoundIn-72 hasbisect OS-Linux OS-Mac OS-Windows Pri-1 Type-Bug-Regression
Owner: chrishtr@chromium.org
Status: Assigned (was: Unconfirmed)
Thanks for filing the issue!

Able to reproduce the issue on reported chrome version 72.0.3626.53 and on the latest canary 73.0.3678.0 using Ubuntu 14.04, Windows 10 and Mac 10.13.1

Bisect Information:
-------------------
Good Build: 73.0.3630.0
Bad Build:  73.0.3631.0

Other observations:
-------------------
Issue isn't seen on latest stable 71.0.3578.98 and on beta 72.0.3626.64
Note: Issue is seen on version 72.0.3626.8 too.
Suspecting the same from comment#1.
https://chromium.googlesource.com/chromium/src/+/5aeac688156a067eeac628f056e05065134fcc2e
Review URL: https://chromium-review.googlesource.com/c/1359692

@Chris Harrelson: Please help in assigning it to the right owner if this isn't related to your change. Adding RBS as this seems to be a recent regression.
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