Letters get scrambled when typing. (nginx reverse HTTPS proxy, nextcloud integration)

[lucaspcamargo]

Describe the bug When I type the letters seem to arrive out-of-order in the server. This did not happen when running atop Nginx directly instead of apache2, despite any lag.

To Reproduce Steps to reproduce the behavior:

1. Just type, within a document or a spreadsheet.
2. Letters are getting switched up.

Expected behavior Nomal letter ordering (?).

Actual behavior Letters get scrambled, as if they all have a random delay to get to the "paper".

Screenshots

Desktop (please complete the following information)

• OS: Arch Linux
• Browser: Tested on Both Firefox and Chromium. Same behavior.
• Version: FF 101 and Chromium 102

Additional context I thought that maybe it's because my setup is a bit unusual, but then I figured that using a separate proxy for HTTPS (especially because Apache2 is the only supported version of Nextcloud) should not be uncommon at all. Hence this report :)

Could there be an internal setting in CODE that changes how the real-time communication is done, depending on the server, that I could have to reset? (just speculating at this point)

[pedropintosilva]

I couldn't test this, could you @thebearon or perhaps @Ezinnem ?

[Elliot-Construct]

I have the exact same problem using Squid Reverse Proxy.

[lucaspcamargo]

This was using the test server available on Nextcloud store. Now I know that is not representative of a production environment. On a regular install of coolwsd, the problem does not occur. Closing this issue.