Line breaks in code samples are missing on initial load

[G-Rath]

For some reason when the page is initially loaded, code blocks don't have their <br> tags causing everything to be on the same line - if you then navigate, the line break elements are correctly added.

This video shows the issue in reverse, whereby the <br> elements are present until the page is reloaded (as doing it the other way had the devtools collapse the body tag entirely)

20251217-0407-23.2890585.mp4

[G-Rath]

I'm really hoping this isn't just a me thing, but I've not been able to reproduce this in another browser or using browserstack - I've disabled extensions, cleared caches, ensured local overrides weren't enabled, etc.

There are also no errors in the console or network tabs that I can spot as being relevant

[dylanfisher]

I see the issue, too, using Chrome. If I disable JavaScript the problem doesn't happen. And if I look in an incognito window I don't see it happening.