Warning Could not load module "/univention/management/modules/appcenter/

After last updates (4.4-3 errata455) I got this Warning and I can’t open any App installed.

What can I do?

Problem solved. I tried with Firefox instead of Safari and no more Warning.

I am also getting this error in safari now.

Could not load module "/univention/management/modules/appcenter/AppChooseHostDialog.js"

In the inspector the error says the following:

Refused to execute https://ucs.domain.com/univention/management/modules/appcenter/AppChooseHostDialog.js as script because "X-Content-Type: nosniff" was given and its Content-Type is not a script MIME type.

So far as I can tell this error just prevents the app center from working. Not sure if it affects anything else.

After a reboot of the server and clearing the cache on safari I am no longer seeing this error. Not sure if there was never a problem and it was just caching something it shouldn’t have been or what, but the error is gone now.