Express.js App on Phusion Passenger - did not write a startup response in time

I am trying to run an express.js app on a server running Phusion Paggenger (apache) and am seeing the error "An error occurred while starting the web application: it did not write a startup response in time." after the request times out. I've read through but this seems a bit obscure. My express app is as bare-bones as possible so I'm wondering if anyone knows if there may be a component specific to express that might cause this. I have been able to run a plain node.js app with the same setup on the server.


If you used the express-generator command to set up your project, you might see if pointing your Virtual Host configuration file's PassengerStartupFile line to bin/www instead of app.js does the trick instead of explicitly calling app.listen in the app.js file. Phusion Passenger's documentation does not address this specific convention adopted by ExpressJS. You can read some about this bin/www startup convention on Express's Moving to 4.x guide. Seemed to work for me.

It seems that you need to explicitly call app.listen within app.js. Specifically, I do this only when in production:

if (app.get('env') === 'production') {

at the end of app.js

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