static/admin/TinyMCETextArea.js
function () {
        var me = this;

        var wwg_mode = false;

        var ed = tinymce.get(me.getInputId());

        if (me.wysiwygIntialized) {
            if (ed && !ed.isHidden()) { wwg_mode = true;}
        }

        var ctrl = document.getElementById(me.getInputId());

        if (wwg_mode) {
            me.storedCursorPosition = ed.selection.getBookmark('simple');
        }
        else if (ctrl) {
            me.storedCursorPosition = me.positionBeforeBlur;
        }
    }
function () {
        var me = this;

        var wwg_mode = false;

        var ed = tinymce.get(me.getInputId());

        if (me.wysiwygIntialized) {
            if (ed && !ed.isHidden()) { wwg_mode = true;}
        }

        var ctrl = document.getElementById(me.getInputId());

        if (wwg_mode) {
            me.storedCursorPosition = ed.selection.getBookmark('simple');
        }
        else if (ctrl) {
            me.storedCursorPosition = me.positionBeforeBlur;
        }
    }
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