Dear Maintainer,
I've the same problem to proxy the Proxmox weg gui. My configuration is: SSLProxyEngine on ProxyRequests off <Location "/"> ProxyPass https://127.0.0.1:8006/ flushpackets=On connectiontimeout=300 timeout=300 ProxyPassReverse ${DESTINATION} </Location> ProxyTimeout 600 #SSL Connect SSLProxyVerify none SSLProxyCheckPeerCN off SSLProxyCheckPeerName off SSLProxyCheckPeerExpire off # Encoded slashes need to be allowed AllowEncodedSlashes NoDecode <location "/api2/json/nodes/"> proxypass wss://127.0.0.1:8006/api2/json/nodes/ retry=0 </location> I've found a workaround by copy the the module /usr/lib/apache2/modules/mod_proxy_wstunnel.so from debian jessie (Apache 2.4.10), but this is only a workaround for time. I hope you fix it soon :) best regards Hans-Willi Werres