You have not activated SSL (https) and this may cause problems. You can try the following (.htaccess):
Access-Control-Allow-Origin: https://myclassadmin.com
or
Access-Control-Allow-Origin: https://myclassadmin.com
Read more: https://stackoverflow.com/a/12943371
]]>I tried the solution that you mentioned, but it didn’t worked at all.
You have any other solutions regarding this?
And even without trying your solution, it was by default set to
Access-Control-Allow-Origin: https://myclassadmin.com
I just checked that!
You can also check the following things:
Does your .htaccess say something like that? If so, take it out:
<FilesMatch "(admin-ajax.php)">
Require all denied
</FilesMatch>
Also check if your wp-admin folder is on CHMOD 744 or 755.
Do you use other plugins? Try to disable them all and try again. So that you can rule out that it is due to other plugins.
Otherwise I can only advise you to enable https.
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