"The requested page could not be found." alert when broadcasting a message to all users.

I'm currently developing a site with node.js integration in. After installing node in the way I'm used to I ran a couple of tests to ensure it was working correctly (dblog and broadcast to all users).

Although watchdog (and indeed all other nodejs modules) work as expected, whenver a message is broadcast to all users (either using the nodejs_notify broadcast form or with heartbeat module) I receive the following alert on all user windows.

This happens to every single user on each tab for every single broadcast message.

After a little debugging, I could find nothing in the watchdog log, nothing in the apache access log, nothing in syslog, nothing in nodejs debug log that matched the same words/(apparent) 404 error.

My config file is as follows:

settings = {
//  scheme: 'http',
  port: 8187,
  host: '',
//  resource: '/socket.io',
  serviceKey: 'servicekeyhere',
  backend: {
    port: 80,
    host: 'www.mysitehere.com',
    scheme: 'http',
    basePath: '',
    messagePath: '/nodejs/message'
  },
  debug: true,
};

Although I'm fairly sure it is not a config issue as all other nodejs functionality works.

As a measure of fullness I followed the README exactly and I receive the same result. I also receive the same result with 4 different versions of node (0.4.12/0.6.8/0.6.12/0.8.16).

I'm at a bit of a loss and would be interested to see if a) people have experienced this themselves and b) how can I fix this!