bitno2u

Ad-hoc solution: Change jquery 3.3.x file instead (offsetParent === doc.body || offsetParent === doc.documentElement) && insert (offsetParent !== doc && offsetParent !== doc.body && offsetParent !== doc.documentElement) && For morde...

Better solution: Change jquery-sortable.js instead if (el.css("position") === "relative" || el.css("position") === "absolute" || el.css("position") === "fixed") insert if (el.css("position") === "relative" || el.css("position") === "absolute" || el.css("position") === "fixed"...

Download [jquery-sortable.js v0.9.13 ](https://johnny.github.io/jquery-sortable/) and add "static" as an option for el.css("position"), as described before.