In the WEB-CLIENT
It is a very frustrating issue that the you-tube video's does not playing embedded in the side screen.
I think that this problem has to be revolve with the highest priority !
New users will directly dropping out because they do not know the use of the external web-tab and even they may not want to use this external option. I think that the problem can be resolve very quickly if you compare the code in the Desktop version with the code of the webclient.
Thanks to look at this,