"Hey, I have the same problem, but my request for “http: //IP/browser/55317ef/cool.html” failed.
“ Failed to establish socket connection or socket connection closed unexpectedly. The reverse proxy might be misconfigured, please contact the administrator. For more info on proxy configuration please checkout Proxy settings — SDK https://sdk.collaboraonline.com/ documentation ”
My apache2 reverse proxy configuration:
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Reverse proxy for Collabora Online
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AllowEncodedSlashes NoDecode
ProxyPreserveHost On
static html, js, images, etc. served from coolwsd
browser is the client part of Collabora Online
ProxyPass /browser http:// 127.0.0.1:9980/browser retry=0
ProxyPassReverse /browser http:// 127.0.0.1:9980/browser
WOPI discovery URL
ProxyPass /hosting/discovery http:// 127.0.0.1:9980/hosting/discovery retry=0
ProxyPassReverse /hosting/discovery http:// 127.0.0.1:9980/hosting/discovery
Capabilities
ProxyPass /hosting/capabilities http:/ /127.0.0.1:9980/hosting/capabilities retry=0
ProxyPassReverse /hosting/capabilities http: //127.0.0.1:9980/hosting/capabilities
Main websocket
ProxyPassMatch “/cool/(.*)/ws$” ws://127.0.0.1:9980/cool/$1/ws nocanon
Admin Console websocket
ProxyPass /cool/adminws ws://127.0.0.1:9980/cool/adminws
Download as, Fullscreen presentation and Image upload operations
ProxyPass /cool http:// 127.0.0.1:9980/cool
ProxyPassReverse /cool http:// 127.0.0.1:9980/cool
Compatibility with integrations that use the /lool/convert-to endpoint
ProxyPass /lool http:// 127.0.0.1:9980/cool
ProxyPassReverse /lool http:// 127.0.0.1:9980/cool"