Website Layout changes depending on opening method

[CanonDieCamera]

When I use the IP to open the website, the website seems to be OK. But when I use the Button "im Netzwerk anmelden" the website is missing the "Messung (WebSerial)" Part.

Used Browser: Firefox

[CanonDieCamera]

Since its recommended to use a chromium based Browser, I will test if this error occurs in chromium based Browser too.