Its not possible to add an emotion, picture or flash movie. This must affect changes between r36766 and r37056. Webkit r36766 is working, r37056 not.
And also it isn't possible to add link. Entire screen becomes inaccessible.
*** Bug 22544 has been marked as a duplicate of this bug. ***
*** Bug 21274 has been marked as a duplicate of this bug. ***
Regression->P1
<rdar://problem/6468156>
Narrowed down the regression a bit more.
Regressed in http://trac.webkit.org/changeset/36779
Fixed in r41028
*** Bug 23667 has been marked as a duplicate of this bug. ***