Some users are reporting that Microsoft Edge is opening a weird popup by pressing / on the input field:

(sorry for the Italian text).

Demo: https://jsfiddle.net/vLobfq92/ press / in the input field using Microsoft Edge

I can't find any API or DOM attribute to avoid this, I tried autocomplete="off" and other, but nothing and if there is a browser option to set we can't ask all users to do this.