Reverse Proxy Problems with Inception 40.0

[shaunss]

Describe the bug
Updating Inception to 40.0 breaks our Nginx reverse proxy setup.
Two errors occur:

1. After login, Inception stays on the login page. Only after manually reloading the page, it shows the normal logged in view

2. On the admin page, Inception reports "Reverse proxy does not seem to be trusted" (see screenshots)
   One effect of this error is, that it is no longer possible to export Inception projects.

I had updated Java to version 21, and I had also updated the "inception.service" file as described in the update notes

After downgrading back to 39.7, Inception is again working.

Screenshots
Inception 40.0

Inception 39.7

Please complete the following information:

• Version and build ID: 40.0 (2026-03-17 09:54:46, build 4e247d4)
• OS: Ubuntu 20.04
• Browser: chrome

[reckart]

Thanks for the report. I can also see the reverse proxy warning on an instance I am hosting. But I do not have the problem that the login only works after redirection. So I guess the two issues are unrelated.

Can you open the login page in your browser (best Chrome), open the developer console of the browser, open the network tab, clear all contents that may already be recorded there and then log in.

The first entries should be something like:

• ws GET 101
• login.html?.... POST 302
• HOSTNAME... GET 302
• ?2 get 200
• and then all kinds of resources used on the page

Does that also look like this in your browser for your instance?

[shaunss]

Currently we are using 39.7 in production. Once the current tasks are done, I will upgrade again to 40.0 and check the network protocol.