I have “Failed to fetch” errors and Usernoise does not load at all.
This happens during Usernoise’s AJAX calls when
FORCE_SSL_ADMIN option is enabled, but the site is accessed with http protocol (not SSL). It’s best to switch the whole site to SSL in this case and add redirects from http to https. This can be done with Easy HTTPS redirection plugin with “Enable automatic redirection to the HTTPS” option enabled. Please make sure the rest of the site works correctly with HTTPS.
If you can’t do that, you need to tune your web server configuration to send Access-Control-Allow-Origin headers. You can read more on this here: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Allow-Origin and here https://enable-cors.org/server_apache.html