nginx_cups.conf

nginx_cups.conf

set $cupsip <CUPS IP>;
set $cupsport <CUPS PORT>;

location /cups/ {
    add_header Access-Control-Allow-Origin *;
    proxy_pass http://$cupsip:$cupsport/;
    proxy_set_header Accept-Encoding "";
    proxy_pass_request_headers      on;
    proxy_redirect / /cups/;
    sub_filter 'http://' 'https://';
    sub_filter ':$cupsport' ':443/cups';
    sub_filter '"/' '"/cups/';
    sub_filter "'/" "'/cups/";
    sub_filter 'url(/' 'url(/cups/';
    sub_filter 'url("/' 'url("/cups';
    sub_filter "url('/" "url('/cups";
    sub_filter "$host/" "$host/cups/";
    sub_filter_types *;
    sub_filter_once off;
    sub_filter_last_modified on;
}