Nginx FastCGI : X-Fastcgi-Cache: MISS

Hi,
I am trying to get FastCGI to work but on every site I get X-Fastcgi-Cache: MISS and the cache directory keeps empty
A simple curl -I gives me

Code:

root@secure:/etc/nginx# curl -I https://some.domain
HTTP/1.1 200 OK
Server: nginx/1.11.9
Content-Type: text/html; charset=UTF-8
Connection: keep-alive
Vary: Accept-Encoding
X-Powered-By: PHP/7.1.1
Set-Cookie: qtrans_front_language=en; expires=Tue, 20-Feb-2018 14:40:00 GMT; Max-Age=31536000; path=/; secure
Link: <https://some.domain/wp-json/>; rel="https://api.w.org/"
X-Fastcgi-Cache: MISS
Date: Mon, 20 Feb 2017 14:40:00 GMT
X-Page-Speed: 1.12.34.2-0
Cache-Control: max-age=0, no-cache

My nginx.conf, the last part has

Code:

 ##
        # Virtual Host Configs
        ##

        pagespeed on;
        pagespeed FileCachePath /var/ngx_pagespeed_cache;

        include /etc/nginx/conf.d/*.conf;
        include /etc/nginx/sites-enabled/*;

        fastcgi_cache_path /etc/nginx/cache levels=1:2 keys_zone=CZONE:100m inactive=60m;
        fastcgi_cache_key "$scheme$request_method$host$request_uri";
        fastcgi_ignore_headers X-Accel-Expires Expires Cache-Control;

        index index.php;

}

The /etc/nginx/cache has as owner www:data and my vhost is like this

Code:

[...]
     location @php {
                try_files $uri =404;
                include /etc/nginx/fastcgi_params;
                fastcgi_pass unix:/var/lib/php7.0-fpm/web5.sock;
                fastcgi_index index.php;
                fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
                fastcgi_intercept_errors on;
                fastcgi_ignore_client_abort off;
                fastcgi_connect_timeout 60;
                fastcgi_send_timeout 90;
                fastcgi_read_timeout 90;
                fastcgi_buffer_size 128k;
                fastcgi_buffers 4 256k;
                fastcgi_busy_buffers_size 256k;
                fastcgi_temp_file_write_size 256k;
                fastcgi_cache CZONE; # The name of the cache key-zone to use
                fastcgi_cache_valid     200 301 302  1h; # What to cache: 'code 200' and 'code 302' responses, for an hour
                fastcgi_cache_valid     404     1m;
                fastcgi_cache_min_uses  2;
                fastcgi_cache_methods GET HEAD; # What to cache: only GET and HEAD requests (ot POST)
                add_header X-Fastcgi-Cache $upstream_cache_status; # Allow us to see if the cache was HIT, MISS, or BYPASSED inside a browser's Inspector panel
                fastcgi_cache_bypass $no_cache; # Dont pull from the cache if true
                fastcgi_no_cache $no_cache; # Dont save to the cache if true
                fastcgi_keep_conn on;
        }

[...]

my /etc/fstab

Code:

LABEL=cloudimg-rootfs   /        ext4   defaults,discard,usrjquota=quota.user,grpjquota=quota.group,jqfmt=vfsv0  0 1
tmpfs /etc/nginx/cache tmpfs defaults,size=2G 0 0

The only strange things I noticed are in Bold, One is With PHP7.1.1 and the other with PHP7. I can't find where it goes wrong. I had it in the past (other installation, same config) working.
Who can give me an answer?

Forgotten : I added to /etc/nginx/sites-enabled/default

Code:

set $no_cache 0;
       if ($request_method = POST) {
               set $no_cache 1;
       }
       if ($query_string != "") {
               set $no_cache 1;
       }

 

Don´t know how, but it's working again. But on a clean install of WordPress.

root@secure:/usr/local/ispconfig# df -ah | grep tmpfs
tmpfs 799M 50M 749M 7% /run
tmpfs 3.9G 0 3.9G 0% /dev/shm
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
tmpfs 2.0G 48K 2.0G 1% /etc/nginx/cache
tmpfs 799M 0 799M 0% /run/user/1000