Alternative of rosbridge for my web app ?

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hello,

I have created a web app that loads maps and bot using roslibjs and rosbridge in localhost .now I want to work it with a remote connection where the internet dongle is used for a wifi connection to raspberry pi. the dongle doesn't have a port forwarding option and I'm unable to find any other suitable solution for this.

can anyone suggest good WebSocket connection for ros without using rosbridge

thanking you