http - Web service only works when NO port is specified -


i have tool retrieving rss feeds. test, using http://rss.cnn.com/rss/edition.rss .

while browser able retrieve feed, tool getting 404. noticed other rss tools failed same error.

investigating wireshark logs, noticed difference tool used host: rss.cnn.com:80 while browser used host: rss.cnn.com.

and indeed, removing port fixed it.

but mean?


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