text-limit.min.js overwrites window.self

Hi, this is gonna be more of an bug report than a help request.

I have noticed that the script text-limit.min.js overwrites window.self. We use this variable to check whether the page is inside of an iframe and this breaks the check. This seems unintentional and should be a simple fix so I wanted to report it in hopes that you could fix it in a future update. Thanks.