access-control-allow-origin

  1. No 'Access-Control-Allow-Origin' header is present on the requested resource

    Hello, We are trying to install Live chat on our non-wordpress website. We have this issue : Access to fetch at 'https://s**-m**.on3cx.fr:5001/MyPhone/config/LiveChat45****' from test.s**-m**.net/:1 origin 'https://test.s**-m**.net' has been blocked by CORS policy: No...