Mike Housman wrote:
1. Please allow MIME type text/xml+xhtml in the XHTML 2.0 specification. This presents less security risk than MIME type application/xml+xhtml.
Firstly, neither of those MIME types exist, although I believe you are referring to application/xhtml+xml. Secondly, what security risks? Thirdly, you should read why text/xml and other text/*+xml MIME types are not recommended [1].
2. Please allow IFRAME in the XHTML 2.0 specification. Microsoft Internet Explorer treats the OBJECT tag as ActiveX which is disabled by me and many other web users for security reasons, and thus many webpages do not display properly. Many webmasters would prefer IFRAME in XHTML 2.0 compliant webpages.
The behaviour of a broken and insecure browser is no reason alter the spec, especially when many other browsers don't suffer from the same problems. And besides, <object> in XHTML 2 is in a different namespace from XHTML 1.x, and so no browser supports it at all.
3. Please allow the SRC attribute for the DIV element in the XHTML 2.0 specification. This would enable the use of DIV as an alternative to the IFRAME and OBJECT elements.
The src attribute applies to almost every element in XHTML 2, but what difference does it make by using <div> instead of <object>?
4. Please create a new comment element with start tag <!> and end tag </!> to replace [or be an alternate to] the current comment syntax: <!-- comment -->.
Why? The comment syntax is defined by the XML recommendation and <!> would be illegal in XML since "!" is not a valid name [2]
[1] http://www.w3.org/TR/webarch/#xml-media-types [2] http://www.w3.org/TR/REC-xml/#NT-Name -- Lachlan Hunt http://lachy.id.au/
