Bug 262804

Summary:	[GTK] Page jumps while scrolling
Product:	WebKit	Reporter:	cherokeerigger
Component:	WebKitGTK	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	bugs-noreply, cherokeerigger, mcatanzaro, pbryan
Priority:	P2
Version:	WebKit Local Build
Hardware:	PC
OS:	Linux
See Also:	https://bugs.webkit.org/show_bug.cgi?id=238327

Description cherokeerigger 2023-10-06 12:51:59 PDT

I'm using Gnome's Epiphany browser, version 44.6. While I’m reading a web page, the page will sometimes jump back to the top on its own. (I use a touchpad and scroll down pages to read.) This occurs on almost every page I visit.

Comment 1 Michael Catanzaro 2023-10-06 12:57:46 PDT

What version of WebKitGTK? (Check About Web -> Troubleshooting -> Debugging Information).

This is a little similar to bug #238327, except that one is resolved. Does this happen randomly? If you can find any way to make it happen reliably, that would probably help.

Comment 2 cherokeerigger 2023-10-06 13:18:31 PDT

Thanks for your quick reply. 

WebKitGTK 2.42.1
GStreamer 1.22.6

The problem seems to happen randomly but frequently. I'll see if I can identify any way to make it happen more reliably. The bug you mentioned doesn't seem to affect me--the scrollbar works as expected with no jumpiness.

Comment 3 Paul Bryan 2023-10-10 10:54:59 PDT

This happens to me fairly frequently. I found that I can get this to happen often on the New York Times front page.

Some context I can add:

1. This only seems to happen when I scroll with the trackpad. Keyboard scrolling hasn't had this issue.

2. It seems to occur only while I'm "holding the scroll" on the trackpad. In other words, I'm scrolling slowly and continuously for a period of time as I'm reading text.

3. I can confirm that when I'm scrolling down, it will jump to the top of the page, and when I'm scrolling up, it will jump to the bottom of the page.

Comment 4 cherokeerigger 2023-10-10 11:08:54 PDT

All three of those situations occur with me too--thanks for clarifying the issue. It happens for me on The Guardian's website (British newspaper), Reddit, Slashdot.

Comment 5 Michael Catanzaro 2023-10-10 11:41:53 PDT

(In reply to Michael Catanzaro from comment #1)
> This is a little similar to bug #238327, except that one is resolved. Does
> this happen randomly? If you can find any way to make it happen reliably,
> that would probably help.

This one also sounds suspiciously similar to bug #249912, except that one is specific to keyboard scrolling....

Comment 6 Paul Bryan 2023-11-18 10:11:37 PST

I've now seen this behavior in NewsFlash, another WebKitGTK application.

Comment 7 cherokeerigger 2024-04-09 12:19:11 PDT

This issue is still present for me in Gnome 45.5 with WebKitGTK 2.44.0
GStreamer 1.22.9. Sadly it prevents me from using Web as my default browser.