Steps to reproduce:
- Clear browser cache
- Load https://www.mediawiki.org/wiki/Extension:MultimediaViewer
- Switch browser to offline mode
- Click on the picture
-> The browser window gets black and there is no error message or any other user interface to exit the black screen.
-> In the JavaScript console there is not (error) message.
-> In the network console there are aborted GET request from the resource loader to fetch the modules
Expected result:
The aborted request generates a error message or an exit of the MultimediaViewer.
Version: master
Severity: normal