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Editorial Team
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Asked: 2026-06-03T12:41:08+00:00

I’m attempting to use Node.js with Socket.IO to faciliate messaging between the browser and

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I’m attempting to use Node.js with Socket.IO to faciliate messaging between the browser and client, following the guide.

However, I had to setup Node reverse-proxied behind Apache. So, instead of example.com:8080 for node, I’m using example.com/nodejs/.

This seems to cause Socket.IO to lose sense of itself. Here’s my node app

var io = require('socket.io').listen(8080);

// this has to be here, otherwise the client tries to 
// send events to example.com/socket.io instead of example.com/nodejs/socket.io
io.set( 'resource', '/nodejs/socket.io' );

io.sockets.on('connection', function (socket) {

  socket.emit('bar', { one: '1'});

  socket.on('foo', function( data )
  {
    console.log( data );
  });

});

And here’s what my client file looks like

<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Socket.IO test</title>

  <script src="http://example.com/nodejs/socket.io/socket.io.js"></script>

  <script>

  var socket = io.connect('http://example.com/nodejs/');

  console.log( socket );

  socket.on( 'bar', function (data)
  {
    console.log(data);
    socket.emit( 'foo', {bar:'baz'} );
  });

  socket.emit('foo',{bar:'baz'});

  </script>
</head>
<body>
  <p id="hello">Hello World</p>
</body>
</html>

The problem here is the script reference to http://example.com/nodejs/socket.io/socket.io.js. It doesn’t return the expected javasscript content – instead it returns “Welcome to socket.io” as if I hit http://example.com/nodejs/.

Any idea how I can make this work?

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1 Answer

  1. Editorial Team

    This ended up being a multi-pronged solutions.

    First, on the server end of things, I had to set up the endpoints like this

    var io = require('socket.io').listen(8080);

var rootSockets = io.of('/nodejs').on('connection', function(socket)
{
  // stuff
});

var otherSockets = io.of('nodejs/other').on('connection', function(socket)
{
  // stuff
});

    Then, on the client-side, to properly connect looks like this

    var socket = io.connect(
    'http://example.com/nodejs/'
  , {resource: 'nodejs/socket.io'}
);

// The usage of .of() is important
socket.of('/nodejs').on( 'event', function(){} );
socket.of('/nodejs/other').on( 'event', function(){} );

    After this, it all worked. Remember, on this server Apache is proxying example.com/nodejs to port 8080 internally.

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