I'm running Tomcat 8.5.39 on an ubuntu 18.04 server that is experiencing some weird results when trying to upgrade a secure websocket request from Safari. Safari is returning an "invalid utf-8 sequence" in the browser console when processing the request, looking at the response headers in Safari devTools i see that there are no response headers being sent back. I also reproduce this Tomcat is being hosted on Windows as well.
I turned on debugging on in Tomcat but didn't see anything error out on Tomcat's side. Searching both safari & tomcat forums didn't yield much about this particular scenario. What's interesting is that a non ssl request works fine. Also interestingly enough, when i hit another server using an Apache reverse proxy to handle the SSL handshake and forward off to Tomcat that also works. I tried using the native libs and upgrading to the lastest openssl but the request still fails. No other major browser seems to be doing this (Chrome, FF work fine) I'm kinda at a lost as to why this one particular scenario seems to be failing, any ideas? Thanks, Tom
