Bad middleware makes all requests hang

[raymondfeng]

In app.js, if we configure the LoopBack app as follows:

app.use(require('cors'));

All requests will hang.

Please note the correct usage of cors is app.use(require('cors')());

The issue was discovered by @Schoonology

[ritch]

This is really an issue with express middleware. Any function can be a middleware, and middleware are not required to callback.

A potential helper would be middleware specific timeouts. Maybe something like this...

app.use(uploader(), 60 * 1000 * 5); // 5 minute timeout
app.use(liveStreamer(), Infinity); // explicitly never timeout
app.use(rest()); // default is something reasonable ~ 60 minutes

[bajtos]

In my opinion, this issue should be addressed by expressjs.

[fabien]

Now that Express is here at Strongloop, I think we should close this here and open a ticket there.

[dougwilson]

Use the connect-timeout module.

[bajtos]

The declarative way of registering middleware via middleware.json made this issue obsolete (see #739).