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rapacheproxywebsocketshiny-server

Proxy web socket in shiny server using Apache 2.4

I am using the shiny-server (latest version, 1.4.2.786) behind the Apache 2.4, Ubuntu 14.04.

Following the instruction of online documentation (https://support.rstudio.com/hc/en-us/articles/213733868-Running-Shiny-Server-with-a-Proxy), I can setup the proxy correctly for web sockets. However, I would like to point my URL directly a shiny app (not all apps).

This is my current configuration:

ProxyPreserveHost On
ProxyPassMatch "^/(.+)/websocket" "ws://localhost:3838/$1/websocket"
ProxyPass "/" "http://localhost:3838/users/username/appname/"
ProxyPassReverse "/" "http://localhost:3838/users/username/appname/"
ProxyRequests Off

With this configuration, I still get an error message: 

WebSocket connection to 
'wss://my-url/__sockjs__/
n=WxwgyafTMc2bWeH5eR/787/mx9zqt68/websocket' 
failed: Error during WebSocket handshake: 
Unexpected response code: 500

I guess this is caused by the configuration of proxy of socket. Thanks for any suggestions to fix it.

Solution

  • Have you seen this? It says that your code should look like:

    ProxyPreserveHost On
ProxyPassMatch "^/(.+)/websocket" "ws://localhost:3838/$1/websocket"
ProxyPass "/users/username/appname/" "http://localhost:3838/users/username/appname/"
ProxyPassReverse "/users/username/appname/" "http://localhost:3838/users/username/appname/"
ProxyRequests Off

    Hope that helps!