Can you pls comment out the line nos:655-658 in file js/main.js and see if that makes any difference or not ?
$("#content, #sidebar-primary, #footer").fitVids();
// Take care of maps too - https://github.com/davatron5000/FitVids.js - customSelector option
$("#content").fitVids({ customSelector: "iframe[src^='http://maps.google.com/'], iframe[src^='https://maps.google.com/'], iframe[src^='https://www.google.com/maps/'], iframe[src^='http://www.google.com/maps/']"});
and pls do a hard refresh in ie11 and check.