Added dummy HTTP answerer

examples/signaling-server-nodejs/signaling-server.js

@@ -25,32 +25,41 @@ const clients = {};
 
 const httpServer = http.createServer((req, res) => {
   console.log(`${req.method.toUpperCase()} ${req.url}`);
+
+  const respond = (code, data, contentType = 'text/plain') => {
+    res.writeHead(code, {
+      'Content-Type' : contentType,
+      'Access-Control-Allow-Origin' : '*',
+    });
+    res.end(data);
+  };
+
+  respond(404, 'Not Found');
 });
 
-const wsServer = new websocket.server({ httpServer });
+const wsServer = new websocket.server({httpServer});
 wsServer.on('request', (req) => {
   console.log(`WS  ${req.resource}`);
 
-  const { path } = req.resourceURL;
+  const {path} = req.resourceURL;
   const splitted = path.split('/');
   splitted.shift();
   const id = splitted[0];
 
   const conn = req.accept(null, req.origin);
   conn.on('message', (data) => {
-    if(data.type === 'utf8') {
+    if (data.type === 'utf8') {
       console.log(`Client ${id} << ${data.utf8Data}`);
 
       const message = JSON.parse(data.utf8Data);
       const destId = message.id;
       const dest = clients[destId];
-      if(dest) {
+      if (dest) {
         message.id = id;
         const data = JSON.stringify(message);
         console.log(`Client ${destId} >> ${data}`);
         dest.send(data);
-      }
-      else {
+      } else {
         console.error(`Client ${destId} not found`);
       }
     }
@@ -68,7 +77,5 @@ const splitted = endpoint.split(':');
 const port = splitted.pop();
 const hostname = splitted.join(':') || '127.0.0.1';
 
-httpServer.listen(port, hostname, () => {
-  console.log(`Server listening on ${hostname}:${port}`);
-});
-
+httpServer.listen(port, hostname,
+                  () => { console.log(`Server listening on ${hostname}:${port}`); });