RedirectBundle 3.0.0-RC1: CSV import rejected (invalid MIME type) and export breaks admin UI

[Johann0290]

Sulu Version | 3.0.5 (redirectBundle 3.0.0-RC1) -- | -- PHP Version | 8.5 -- | -- DB Version | 14.22

Actual Behavior

When attempting to upload a CSV file for redirect import via the Sulu admin interface, an error is thrown immediately:

Error - redirects.csv has invalid type. Allowed types are (text/csv)

This happens instantly without any network request being sent.

Additionally, exporting redirects results in an error. The following URL is triggered:

/admin/api/redirect-routes.csv?flat=true&delimiter=;&escape=\&enclosure="&newLine=\n

After that, the admin interface appears to be broken.

However, importing redirects via the CLI works without any issues:

bin/adminconsole sulu:redirect:import

Expected Behavior

• CSV import via the admin UI should accept valid .csv files and send the request properly.
• CSV export should work without errors and should not break the admin interface.
• Behavior should be consistent between UI and CLI import.

Steps to Reproduce

1. Go to the redirect import section in the Sulu admin UI.
2. Try to upload a valid .csv file.
3. Observe the immediate validation error without any request being sent.
4. Try exporting redirects.
5. Observe the error and broken UI state.

[alexander-schranz]

@mamazu tried to reproduce it but could not. Is there any issue with mime type detection? Are you using PHP inside docker or what mimetype is returned? Also is it browser specific error or not?

Example CSV:

source,target,enabled,statusCode
/redirect-hello-world-2,/,1,302
/redirect-hello-world-3,/,0,302

[mamazu]

I also couldn't reproduce the error sadly.