Hello there,
First of all, thanks a lot for your plugin : a big help for all WP's users !
In my case, I have some questions about the installation : when activated, some headers are "duplicated". I've checked if I had an another tools or rules in .htaccess which could provoke that but there is nothing more than this plugin.
In the settings, I can see "beta" options for duplicate headers. So, those duplications are a bug ? Or a misconfiguration of my side ?
When I checked all boxes of these beta's settings, duplicates headers are still there.
Is this a big problem for a site to have those duplicates headers ? (with testing tools, they say that it could be a problem if there are two differents settings for a same header. But in this case, the origin of duplicates headers is the same, so I think it will be always the same settings, isn't it ?)
Have a nice day !