Failed to read FastCGI header

Gerbz

Hey yall - first time user on a fresh install.

When generating my first discussion, I see the error, "Oops! Something went wrong. Please reload the page and try again.". Upon reloading, the post was created (but strangely it does not show the user who posted it or give me the ability to edit my post.).

I'm using Cloudways hosting on a Google Cloud server. I notice in the server settings it has "PHP FPM" running if that helps with debugging. Here's the error from the apache logs:

[Fri Jan 12 20:15:58.738532 2018] [proxy_fcgi:error] [pid 16414] [client 127.0.0.1:36418] AH01067: Failed to read FastCGI header, referer: https://mysite.com/
[Fri Jan 12 20:15:58.738584 2018] [proxy_fcgi:error] [pid 16414] (104)Connection reset by peer: [client 127.0.0.1:36418] AH01075: Error dispatching request to : , referer: https://mysite.com/

Gerbz

Got it figured out for anyone else who has this problem. The Cloudways default lamp config activates Varnish by default. Disabling Varnish fixed the problem.