Maybe you all know that in XHTML, <link /> tags are only allowed inside <head></head>.
I have a valid XHTML file, and it contains one or more <script> tags pointing to external(3rd party) javascripts inside <body></body> to load some ads. The ad providers are putting their own <link> tags to link to CSS files for styling their ads.
This case doesn't hurt my XHTML validation since the <link/> is inside the javascript outside of my XHTML, but there are also cases that I have to do "virtual include" of the actual HTML ad content, and that's where the validation issue occurs.
Can someone suggest another way for styling those external ads, while keeping my page XHTML compliant?