"Bad Request: invalid CSRF token" when Updating branch by merge

[eNBeWe]

Description

When clicking the "Update branch by merge" button in a pull request, I get dropped back to the main gitea page with a "Bad Request: invalid CSRF token" error message.

Gitea Version

1.19.0 as well as 1.19.0+28-g81a995cd8

Can you reproduce the bug on the Gitea demo site?

No

Log Gist

No response

Screenshots

Git Version

2.25.1

Operating System

Ubuntu Linux 20.04.6

How are you running Gitea?

Installed from binaries with systemd service behind nginx reverse proxy.
Nginx-Config is the same as given in the docs.

Database

PostgreSQL

[lunny]

Whether you stay the page for a long time and click the button directly when you back?

[eNBeWe]

Happens in either case

[wxiaoguang]

Go to your Site Admin page, do you see any error/warning message on page?

[wxiaoguang]

OK, I understand the problem now. A regression of #22683

[eNBeWe]

For completeness: Nothing in the site admin pages.
But I guess that is kind of moot now, since you found the issue. Good job

[wxiaoguang]

#23790 will fix the problem. Thank you for your report.