I have two Flarum forums sharing one database and all tables within them. Let's say my main Flarum is forum.site1.com, and the second one is forum.site2.com
Because all of the content is identical, I don't want to confuse search engines, and I want to set up a canonical link on site2 to point on site1
I've added a canonical link to site2 in the <head> via extension, but how can I remove the original canonical tag?