Enable Websockets in DSM Reverse Proxy
Actually, it is extremely easy to enable Websockets for Synology DSM reverse proxy:
Open Control Panel > Application Portal
Change to the Reverse Proxy tab
Select the proxy rule for which you want to enable Websockets and click on Edit
Change to the Custom Headers tab
Add two entries in the list:
- Name: “Upgrade”, Value: “$http_upgrade”
- Name: “Connection”, Value: “$connection_upgrade”