Navbar going small unneccesarily

[jxpsert]

URL

https://www.openstreetmap.org

How to reproduce the issue?

1. Use monitor with 2560x1440 resolution (also tested on 1920x1080)
2. Use Firefox (version 135.0, Windows 11)
3. Open OSM homepage in full screen browser window
4. Body gets 'small-nav' class (as per applications.js lines 99-105)

Screenshot(s) or anything else?

I would expect to see the regular navbar here, as I'm using a desktop.
Computing the compactWidth in the dev console comes out to 2590, while $(window).width() returns 2560.
I suspect something is going wrong in calculating the width. (applications.js lines 115-123)

[tomhughes]

I regularly use firefox on hidpi screens and don't see this so there must be something unusual about your environment I think.

[tomhughes]

I just tried it in responsive mode on a 4K screen with device size set to 2560x1440 and $(window).width() was 2560 while compactWidth was only coming out at about 500 so clearly there's something different in your environment.

What language are you using? Is it something with very long strings?

[jxpsert]

Just English.
This only started happening a few days ago. I've since cleared all types of cookies and cache of the site multiple times.