### Steps to reproduce

1. Setup an OIDC provider

2. Login via the provider through Begin of the deletion Firefox

3. Login via the provider throughEnd of the deletion Chrome (or another Chromium-based browser)


### What is the buggy behavior?

Login through Chrome doesn't work due to a CSP violation

### What is the expected behavior?

Login should work through all browsers.

###

### Environment information

**OpenProject version**

17.9 (unreleased)

**Browser**

* [x] Chrome
* [ ] Firefox
* [ ] Safari
* [ ] Mobile Safari
* [ ] Other (please specify)