A <textarea align="right"></textarea> element causes text inside of it to be right-justified.
Instead, the contained text should be left-justified, and the align="right" should be ignored. (The align="right" should not render the whole element on the right side of the page, either.)
Firefox 18.104.22.168 and MSIE 6 both behave this way, e.g., effectively ignoring this attribute.
Created attachment 6254 [details]
Note that this is not a regression as Safari v2.0.3 (417.8) on 10.4.4 behaves the same way.
Created attachment 6781 [details]
Test case v2
This is a better test case. It sets the "cols" parameter large enough so you can tell which way the text was justified (right or left)!
Created attachment 12161 [details]
Patch. Don't map 'align' attribute for textarea elements.
Comment on attachment 12161 [details]
Landed in r18527.