My feedback: I don't like when web apps override default browser right-click behavior. I understand why you did it, and it seems reasonably well implemented, but it's still a peeve of mine.
If you could find out more about why people like OP dislike overriding the default behavior, you might be able to provide those functions that they are missing. If it's devtools, you're out of luck, but someone who needs those probably already knows ways around the click hijacking.