[TYPO3-core] FYI: Fixed bug #15820: htmlArea RTE: Failure to install AllowClipboard Helper extension raises js error

[Stanislas Rolland]

Hi Steffen,
>
> may be you could look at #15745 where i refactored a general Windw and
> Dialog class for TYPO3, vote, and make use in RTE ?
>
Done. At least for the Dialog classes.

Thanks and regards,
Stan