Google Chrome is broken - please report this to Google Chrome
On this site: https://de.wikipedia.org/wiki/Determinante#Laplacescher_Entwicklungssatz there are two formulas, which should both have a minus sign before the 1. But in the first equation the minus sign is not visible.
Bug happens in current version of Google Chrome on Windows 10
Google Chrome is broken, as you can see when looking at the page source. Please report this to Google Chrome so Google can fix Chrome. Thanks.
I'm not disagreeing with you, but it would be good to know what's up here. The same mathematical notation is on https://en.wikipedia.org/wiki/User:Jonathan3/sandbox and https://de.wikipedia.org/wiki/Benutzer:Jonathan3/sandbox - they display fine on English Wikipedia but not German.
They display both correct in en and de here, and certain Chrome zoom levels are broken in Chrome.
How odd. You're right about the zoom levels. The minus sign just appears and disappears. I guess whoever deals with the <math> tag might be in a better position to report this to Chrome than 2A02:810D:95BF:E340:D17B:2F06:31D7:FE6B :-)
I found a work around (don't know if it will work for anyone).
Try to view the site with 110%
It's a strange one. It might break at 120% and work again at 130% (or whatever). You wouldn't necessarily know it was wrong at any particular zoom.
I confirm the bug in my wiki with Windows 10 and Chrome Version 87.0.4280.141.
The bug appears in a high resolution monitor (2560 px x 1440 px) when I zoom to levels <= 67%. Going larger (> 100%) does not reproduce the problem.
The bug does not reproduce in Linux nor Android 10 (mobile and desktop views). Both Linux and Android Versions are 87.0.4280.141.
I have requested assistance in the Math Extension Talk page: Google Chrome bug causes incorrect formula display