Writing a websocket client to connect to remote websocket server doesn't work

Developers Workers
1

I am trying to connect to a remote websocket server from the worker, so worker is the websocket client and remote websocket is the server.

I just did just the documentation describes (https://developers.cloudflare.com/workers/learning/using-websockets/#connecting-to-the-websocket-server-from-a-client) but I get errors as below.

My code:

let targetSocket = new WebSocket(targetWebSocketServerURL)
if (!targetSocket) {
throw new Error("server didn't accept WebSocket");
targetSocket.send("PING")

I get “You must call accept() on this WebSocket before sending messages.”

and when I add “targetSocket.accept()” it says
"Websockets obtained from the ‘new WebSocket()’ constructor cannot call accept
at handleRequest "

any help on how to resolve this would be appreciated

3

Running into the same issue.

4

I’m also having the same issue.

5

Workaround is to use the fetch then upgrade trick in the documentation.

let {webSocket:targetSocket} = await fetch(
  targetWebSocketServerURL,
  {headers: {Upgrade: 'websocket'}}
);