enigma1 - 9:00 am on Oct 13, 2010 (gmt 0)
But what it does not do is clean up <option value="SEO_page.html"> links
Search engines do not extract nor synthesize links from the option element of drop-down lists. And I believe your problems are still there with the way the links are created. You had a relevant link somewhere perhaps that what got this problem, but the CMS you are using, responds to whatever path you setup and changes the base element.
That's a bad thing. It means whatever path someone types in the server responds with 200 OK and sets up the base element.
and the server shows the page of
with the base element set to whatever is in the url.
So now not only the request poisons the base element but you cannot setup a relative link.
With what I see about security I wouldn't use that framework. And it is not something general about CMS, but specific to the one you are using