Hello,
Since the last update of our gitlab-ce v16.10.2 installation via aptitude, we are no longer able to use the integrated editors (web IDE, Integrated Editor) if we maintain the passage of flows through our reverse proxy hosted on another server .
This is an Apache HA-Proxy, which has always worked well since it was configured. Unfortunately this is not a product that we control internally. We have control over it but we do not have the necessary knowledge to optimize it in this scenario.
When the flows do not go through the reverse, the web IDE and the classic editor work.
The 404 error occurs during the following processing:
