scrapy/scrapy — pull request #791 by redapple (2014-07-10 11:15:05+00:00)
Title: Extract links from XHTML documents with MIME-Type "application/xml"

"application/xhtml+xml" is already interpreted as HTML
and link extractor is fine with it to extract links.

Only for XML documents can the namespaces in tags be an issue.

Fixes #780