TYPO3 Core

The file used as "template" for the RTE contents EXT:rtehtmlarea/htmlarea/popups/blank.html has no DTD. For IE6 and IE7 this means they go into "quirks mode". This means the old incompatible box model and no support for CSS2 selectors.

Please add the DTD for xhtm1.0 transitional to the file.

Some users might want to have the quirks mode in the RTE to reflect the mode used in the FE. I'm not sure if this will really matter, but if so a new ieStrictMode property (maybe defaulting to 1) could be used to let a user switch between a setup with or without the DTD.

Sidenote: in IE8 you will have to set a special meta tag to force the browser into quirks mode.
(issue imported from #M9375)