ansible-roles/nginx/templates/nginx-cors.conf.j2

{% if nginx_cors_limit_origin %}
set $cors '';
if ($http_origin ~* '{{ nginx_cors_acl_origin }}') {
    set $cors 'true';
}
if ($cors = 'true') {
{% endif %}
    add_header 'Access-Control-Allow-Origin' "$http_origin";
    add_header 'Access-Control-Allow-Credentials' 'true';
    add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
    add_header 'Access-Control-Allow-Headers' 'Accept,Authorization,Cache-Control,Content-Type,DNT,If-Modified-Since,Keep-Alive,Origin,User-Agent,X-Mx-ReqToken,X-Requested-With';
{% if nginx_cors_limit_origin %}
}
{% endif %}
if ($request_method = 'OPTIONS') {
    return 204;
}