Hi all,
I’ve upgraded a large multi-project Umbraco solution from v13.10.1 to v16.0.
Everything builds and runs without runtime errors, but when accessing /umbraco, the backoffice is completely blank.
Screenshots attached:
Network tab – shows app.element.mjs being served as MIME type text/plain.
Console tab – shows Loading module from ... was blocked because of a disallowed MIME type ("text/plain").
Has anyone run into this same issue?
Usually when you have a disallowed mime type, it is because it’s missing in the server configuration. IIS for instance will only serve mime types it knows. In the past, I would usually have to add woff3 to the mime types, otherwise it wouldn’t return the file.
What are you hosting Umbraco on?
Thank you for your answer, I will attempt to change the configuration.
At a later point this will be hosted on Umbraco Cloud, but as of now I am working locally, using Visual Studios IIS Express.
In case it could be of use to anyone, the error was caused because I hadn’t been thorough enough in cleaning om the old backoffice files. So I had a .Core project that still contained traces of the old backoffice and this seemed to cause the interruption. #RookieMistake
This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.
