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-- Apache Web Server
g1smd - 12:21 am on Sep 13, 2011 (gmt 0)Thread source:: http://www.webmasterworld.com/apache/4361442.htm
Err, yeah. I told you that was my most common code typo.
HTTP_HOST is blank when it is a pure HTTP/1.0 request. HTTP/1.0 didn't include the HOST header.
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