Hi All, I'm hoping to get some help with some animations I've been working on. It works well all browsers, except FireFox. In the console I can see an error `TypeError: i is undefined`. On my local it appears that this error is originating on line 97 of DrawSVG plugin. I was looking at the plugin code and noticed that there is a Firefox bug for when an element isn't visible - I wonder if that's what's happening here. I'm trying to find out what exactly is happening so I can fix it. The idea of this project is to funnel users into their appropriate usage category. Each question displays an animation and asks a question. The first animation runs, but when I try to click 'Get Started' the JS is blocked, so I can't click to the next question. I've attached the codepen for reference. If anyone could shed some light on this, I would so appreciate it. Thanks!