TinyMCE 4.7.13
Error
Uncaught TypeError: Cannot read property ‘toLowerCase’ of undefined
Find in tinymce.js
var applyRngStyle = function (dom, rng, bookmark, nodeSpecific) {var newWrappers= [];var wrapName, wrapElm, contentEditable=true;wrapName=format.inline||format.block;wrapElm=dom.create(wrapName);setElementFormat(wrapElm);
Add try {} catch {}
var applyRngStyle = function (dom, rng, bookmark, nodeSpecific) {var newWrappers= [];var wrapName, wrapElm, contentEditable=true;try {wrapName=format.inline||format.block;wrapElm=dom.create(wrapName);setElementFormat(wrapElm);}catch(err) {}