Not seeing, literally, what's happening it's difficult to say.
That being said, as Internet Explorer gets creakier (and it has been creaky for quite a while and is gaining creaks with increasing speed) it often behaves somewhat differently than the flagship web browsers do.
If the link is not private in any way, please post it. I'll take a look at what occurs in Firefox, Chrome, Edge, and IE.
Brian - Windows 10 Home, 64-Bit, Version 1809, Build 17763
Explanations exist; they have existed for all time; there is always a well-known solution to every human problem — neat, plausible, and wrong.
~ H.L. Mencken, AKA The Sage of Baltimore