[jetty-users] Issue with Jetty Web Sockets behind IIS Reverse Proxy

[Manpreet Singh <manpreet.singh@xxxxxxx>]

Hi,

 

We have a setup where Jetty sits behind an Microsoft IIS Reverse Proxy (via ARR). IIS is 10.5 on Windows 2019. Our Web application deployed in Jetty uses web sockets to render video on the browser.

 

Since we have upgraded from Jetty 9.2.17.v20160517 to  9.4.24.v20191120, the web socket seems to have stopped working. The video doesn’t go through anymore.  Everything else is exactly the same.

If we downgrade Jetty to 9.2.17 it starts working again in the same setup.

If we remove IIS in front of Jetty 9.4.24 it works as well.

If we upgrade Jetty to latest version 9.4.31 it doesn’t work.

 

So there seems to be some incompatibility between MS IIS and Jetty related to web sockets.

 

Does anyone else has run into a similar issue or are there any obvious things that changed between these versions that can impact our scenario?

Can you point us to some troubleshooting techniques/logging recommendations that can be used to diagnose this?

 

Thanks,

Manpreet