When importing the plugin as a ES6 module I've got the following error:

Uncaught ReferenceError: txt is not defined

This is caused by minified file missing variable declaration and by just using the variable.
ES6 modules are always in strict mode that causes the error.

It's had to pinpoint specific script that causes the issue. It looks like one of the dependencies. I was unable to do this. Maybe there is a way to check what causes the problem and replace / upgrade the library?