I have a problem with WebSockets being proxied with ARR and URL rewrite in Geoevent Server 10.6, I cannot subscribe to the stream services using Chrome, Firefox, but it works on Edge and IE. I had it working fine in 10.4.1 and 10.5.1, configured as described in Using IIS Application Request Routing (ARR) to proxy GeoEvent Stream Services. I upgraded to 10.6 and stopped working. My first guess was any certificate issue, but requests are being redirected to geoevents 6180 port. Any change on how WebSockets are being handled in 10.6, RJ Sunderman?
I had to downgrade to 10.5.1 and subscrption works fine.