ui - add CORS to wizard check endpoint

src/common/core/ui/confs/default-server-http/ui.conf

@@ -20,9 +20,14 @@ location /setup {
 }
 
 location /setup/check {
+    add_header 'Access-Control-Allow-Origin' '*' always;
+    add_header 'Access-Control-Allow-Methods' 'GET' always;
+    add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range' always;
+    add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range' always;
     default_type 'text/plain';
     content_by_lua_block {
         ngx.say("ok")
     }
 }
+
 {% endif +%}