This is a VERY good question, I too have had this issue. Unless there is indeed something we are both missing or are experiencing some sort of application bug I might feel like this was censorship of technology masquerading as a "security feature."
I would think a nice lightweight browser which excels in all so many areas would surely not make magnet handling by an outside application a feature that was completely out of reach of its users, and moreover if this truly is a THING, the lack of information within a quick surface check would make me feel like there is either a suppression of the search or a very real lack of concern surrounding this issue.
I really couldn't say, but if you have any info on correcting such browser behavior, please post your solution.