TinyMCE automatically deletes
class = "blablabla" of inserts with Geany / Notepad + + in all browsers except Google Chrome.
For example. I insert text (as the code, but as a text and not in QuickEditor, namely TinyMCE):
<div class="fddg"> <div id="sdfdsF">dfdf</div> </div>
The result is:
<div> <div id="sdfdsF">dfdf</div> </div>
In the previous version of the WP was not. What is this a bug?