The content-type of crossdomain.xml on query.yahooapis.com is incorrect
Our apps used to work well, but we are seeing errors recently when using YQL from Yahoo! Social SDK (flash version). After spending some time trying to find out what happened, we found that the server "query.yahooapis.com" might have a new crossdomain.xml but doesn't have correct content-type (should by text/xml) on it. So it breaks the flash version of Yahoo! Social SDK that we're using.