I've had to spend way too much time today figuring out why nginx would intercept my PHP-generated error pages with custom_error pages. Every doc I came across mentioned that this behaviour is influenced by the "fastcgi_intercept_errors" configuration directive, BUT is supposed to be set to "off" by default. 
Then, at last, I found that in /etc/nginx/nginx_limits.conf, the setting was defined as follows:
	
	
	
		
And I was wondering: why is CustomBuild's nginx configuration deviating from the defaults here?
				
			Then, at last, I found that in /etc/nginx/nginx_limits.conf, the setting was defined as follows:
		Code:
	
	fastcgi_intercept_errors on;
	And I was wondering: why is CustomBuild's nginx configuration deviating from the defaults here?