Be stricter with what is passed in to the openid components

src/room/GroupCallView.tsx

@@ -36,6 +36,7 @@ import { UserChoices } from "../livekit/useLiveKit";
 import { findDeviceByName } from "../media-utils";
 import { OpenIDLoader } from "../livekit/OpenIDLoader";
 import { ActiveCall } from "./InCallView";
+import { Config } from "../config/Config";
 
 declare global {
   interface Window {
@@ -219,11 +220,21 @@ export function GroupCallView({
     undefined
   );
 
+  const lkServiceURL = Config.get().livekit?.livekit_service_url;
+
+  if (!lkServiceURL) {
+    return <ErrorView error={new Error("No livekit_service_url defined")} />;
+  }
+
   if (error) {
     return <ErrorView error={error} />;
   } else if (state === GroupCallState.Entered && userChoices) {
     return (
-      <OpenIDLoader client={client} roomName={matrixInfo.roomName}>
+      <OpenIDLoader
+        client={client}
+        livekitServiceURL={lkServiceURL}
+        roomName={matrixInfo.roomName}
+      >
         <ActiveCall
           client={client}
           groupCall={groupCall}