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Hello,
It has been a problem with the validation web service
http://validator.w3.org/feed/check.cgi?output=soap12&url =
to validate the address
http://pipes.yahoo.com/pipes/pipe.run?_id=c7199b136491d738be9cc9e174ae37fb&_render=rss
returns is not valid.
however since the site says it is valid
http://validator.w3.org/check?uri=http%3A%2F%2Fpipes.yahoo.com%2Fpipes%2Fpipe.run%3F_id%3Dc7199b136491d738be9cc9e174ae37fb%26_render%3Drss&charset=%28detect+automatically%29&doctype=Inline&group=0
Thanks for your time


NOTE: Whenever possible, give the address of the document you were checking..