Recently I made some changes so that I am serving up XHTML 1.1. I'm
talking about real XHTML where the mime type is changed to application/
xhtml+xml and firefox raises hell when there are errors rather then
trying to work around it.
I have a page that uses AJAX to update a div in the page, and I ran
into a problem that I didn't have when serving using the text/html
mime type. The content that was passed back from the AJAX request
contained the "nbsp" html entity and firefox raised an error saying
that "nbsp" is not a valid xml entity.
So my question is how many other html entities are not valid when
passed as xml, and how do I properly send AJAXed content that contains
any such entity?