Hello! I've got a small JS-based music player on my homepage in its upper-left corner (just above the logo). And it works fine in all browsers, except IE and Edge. In those it shows NaN where the song's total time is supposed to be after the page loads. I can't attach a print-screen here, but you can either follow my site's link or here is a link to a photo-bank where it's been uploaded successfully. https://radikal.ru/big/daxo0afors30u But if you try to load my site in FF or Chrome, then it's fine! The URL as you can see is https://apostasia.ru/en/
Your first link isn't all that helpful, not sure what broken crap that is... is that supposed to be a screenshot? The second link times out as if the server doesn't even exist. There ARE a number of ECMAScript 5 and 6 instructions that even Edge cannot do. It's likely one of those that's at fault.