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app.py

@@ -86,9 +86,7 @@ stream = Stream(
     additional_outputs_handler=lambda a, b: b,
     additional_inputs=[chatbot],
     additional_outputs=[chatbot],
-    rtc_configuration=get_twilio_turn_credentials()
-    if get_space() == "gradio"
-    else None,
+    rtc_configuration=get_twilio_turn_credentials() if get_space() else None,
 )
 
 

index.html

@@ -270,12 +270,26 @@
                 const offer = await webrtcPeerConnection.createOffer();
                 await webrtcPeerConnection.setLocalDescription(offer);
 
+                await new Promise((resolve) => {
+                    if (webrtcPeerConnection.iceGatheringState === "complete") {
+                        resolve();
+                    } else {
+                        const checkState = () => {
+                            if (webrtcPeerConnection.iceGatheringState === "complete") {
+                                webrtcPeerConnection.removeEventListener("icegatheringstatechange", checkState);
+                                resolve();
+                            }
+                        };
+                        webrtcPeerConnection.addEventListener("icegatheringstatechange", checkState);
+                    }
+                });
+
                 const response = await fetch('/webrtc/offer', {
                     method: 'POST',
                     headers: { 'Content-Type': 'application/json' },
                     body: JSON.stringify({
-                        sdp: offer.sdp,
-                        type: offer.type,
+                        sdp: webrtcPeerConnection.localDescription.sdp,
+                        type: webrtcPeerConnection.localDescription.type,
                         webrtc_id: webrtcId
                     })
                 });