Khan Academy: xss due to incorrect handling of postmessages

Due to Insecure handling of create link tags a tags in a function called autolink found in 7Bmt.af733e428f9f986dfc96.js js e = n.autolinke, !0; const n = function const e = /\b?:?:https?://|www\d0,3.|a-z0-9.-+.a-z2,4/?:^\s&+|&|?:^\s|?:^\s+\+?:?:^\s|?:^\s+\|^\s!\;:'".,?«»“”‘’&/gi; return...