1560376 - Horizontal scrollbar appears on youtube when apz.allow_zooming enabled

Status: RESOLVED WORKSFORME

(Core :: Panning and Zooming, defect, P3)

Description

[Asif Youssuff]

Attachment: Screenshot from 2019-06-20 14-49-09.png

1. enable apz.allow_zooming;true
2. navigate to https://www.youtube.com/
3. Zoom out once using control -

What happens:

Horizontal scrollbar appears.

Expected result:

No horizontal scrollbar appears, page is not horizontally scroll-able.

On Linux.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

:yoasif, if you think that's a regression, then could you try to find a regression range in using for example mozregression?

Comment 2

[Botond Ballo [:botond]]

(In reply to Release mgmt bot [:sylvestre / :calixte / :marco for bugbug] from comment #1)

:yoasif, if you think that's a regression, then could you try to find a regression range in using for example mozregression?

This is not a regression. Desktop zooming is a new feature that's incomplete.

Comment 4

[Asif Youssuff]

Just noticed this also happens on bugzilla (and reddit, per my last duplicated bug).

Comment 5

[Timothy Nikkel (:tnikkel)]

I tried to reproduce on youtube, reddit and bugzilla, I couldn't get a horizontal scrollbar. I'm not sure but I thought I reproduced this in the past. Can you still reproduce?

Comment 6

[Asif Youssuff]

I can't reproduce this issue anymore.

Comment 7

[Kartikaya Gupta (email:[e-mail])]

It would be nice to get a fix window using mozregression to know what fixed this. But regardless we can close the bug.

Comment 8

[Timothy Nikkel (:tnikkel)]

I've bisected twice and gotten

https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=bc0932b38478abd600cae2b23c5f78381e80d0e8&tochange=fa00c3d74a98bc86e8d1bd637d17917259150996

Which seems wrong.

Before switching to autoland builds I get this range

https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=bc0932b38478abd600cae2b23c5f78381e80d0e8&tochange=d34716786f5b0159ca32bdfbc86fcb6c747618c8

Which includes bug 1578008, bug 1633488, bug 1633938 which seem more likely. Perhaps youtube sends different page contents to nightly builds vs autoland builds?

The autoland range above happens to be the very bottom push of mozilla-central range, ie what you get when finding a fix and every build you test is good, which is why I suspect autoland builds are different than nightly builds in some way for testing this.