1873154 - sfchronicle.com article scroll position jumps to the bottom with iframe lazy loading

Status: RESOLVED WORKSFORME

(Web Compatibility :: Site Reports, defect)

Description

[Kestrel]

STR:

1. Visit sfchronicle.com on Nightly 123.0a1 (2024-01-04).
2. Click a news article headline on the front page.

Expected:
Scroll position remains at the top of the article.

Actual:
Scroll position jumps to the bottom of the article.

Does not happen with dom.iframe_lazy_loading.enabled = false.

Regression window:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=a799334876042dd316b1f327a7421e3dbaec7570&tochange=13cc0076698685511e3fa7c0fa91b02675ff5baa

Regressed by Bug 1622090.

Comment 1

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

:canadahonk, since you are the author of the regressor, bug 1622090, could you take a look? Also, could you set the severity field?

For more information, please visit BugBot documentation.

Comment 2

[Oliver Medhurst [:canadahonk]]

Thanks for the report. I can't reproduce this in my local Nightly build with the pref on when clicking several headlines on the site linked. Could you possibly retest and provide more detailed steps? Thanks!

Comment 3

[Kestrel]

I can no longer reproduce it with the latest Nightly 123.0a1 (2024-01-08) or older going back to the 2023-10-19 regressing build. The site might have changed.