Hmm, that's kinda hard to do with this block.

location / { root /var/www/crm; access_log off;

index index.php index.html; fastcgi_param SCRIPT_FILENAME /var/www/crm/index.php;

if (-f $request_filename) { expires 1d; break; }

try_files $uri $uri/ /index.php?q=$uri; }

I don't see a way to take out the if block which should serve with specific conditions if the file exists.