One of my project requirements is to be complaint with XHTML Strict 1.0. I have set the Lift to use XHTML Strict 1.0 and the Lift generates the page: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" " http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns:lift="http://liftweb.net/" xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Cliff's Test</title> </head> <body> <p> Hello world! </p> <form action="/survey/" method="post"> <p xmlns:lift="http://liftweb.net/" xmlns="http://www.w3.org/1999/xhtml"> <input name="F63599703223BC2" type="submit" value="New" /> <label for="comments">Comments</label><br /> <textarea rows="10" name="F63599693222EH4" cols="40" id="comments">ABC</textarea> <input name="F63599703223BC2" type="submit" value="New" /> </p> </form> <script type="text/javascript" src="/survey/ajax_request/liftAjax.js"></script> <script type="text/javascript"> // <![CDATA[ jQuery(document).ready(function() {liftAjax.lift_successRegisterGC();}); var lift_page = "F63599693221SZP"; // ]]> </script></body> </html> It seems to be OK, but when I put them into W3C validator, it points out 1 error:
[image: Error] *Line 13, Column 43*: Attribute "xmlns" is not a valid attribute. Did you mean "onmouseup" or "onmouseover"? <p xmlns:lift="http://liftweb.net/" xmlns=*"*http://www.w3.org/1999/xhtml"> ✉ <http://validator.w3.org/feedback.html?uri=;errmsg_id=108#errormsg> You have used the attribute named above in your document, but the document type you are using does not support that attribute for this element. This error is often caused by incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Transitional" document type to get the "target" attribute), or by using vendor proprietary extensions such as "marginheight" (this is usually fixed by using CSS to achieve the desired effect instead). This error may also result if the element itself is not supported in the document type you are using, as an undefined element will have no supported attributes; in this case, see the element-undefined error message for further information. How to fix: check the spelling and case of the element and attribute, (Remember XHTML is all lower-case) and/or check that they are both allowed in the chosen document type, and/or use CSS instead of this attribute. If you received this error when using the <embed> element to incorporate flash media in a Web page, see the FAQ item on valid flash<http://validator.w3.org/docs/help.html#faq-flash> . My original code is: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" " http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:lift="http://liftweb.net/"> <head> <title>Cliff's Test</title> </head> <body> <p>Hello world!</p> <lift:main.list form="POST"> <p> <act:new/> <label for="comments">Comments</label> <br /> <act:comment/> <act:new/> </p> </lift:main.list> </body> </html> Could anybody explain why one of the p tag added with namespace attributes? Thank you very much. Best Regards, Cliff Zhao -- You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.