add fastapi to host websocket

frontend/index2.html

@@ -126,7 +126,7 @@ function addTranslation(result) {
       const source = audioContext.createMediaStreamSource(stream);
       const processor = audioContext.createScriptProcessor(4096, 1, 1);
 
-      const wsUrl = "ws://localhost:9090?from=zh&to=en";
+      const wsUrl = "ws://localhost:9090/ws?from=zh&to=en";
       ws = new WebSocket(wsUrl);
 
       ws.binaryType = "arraybuffer";