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Fixing a warning which happened if $ENV{'HTTP_USER_AGENT'} wasn't defined.
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@ -738,7 +738,7 @@ OK, you have a new query named <code>$name</code>
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if ($ENV{'HTTP_USER_AGENT'} =~ /Mozilla.[3-9]/ && $ENV{'HTTP_USER_AGENT'} !~ /[Cc]ompatible/ ) {
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if (exists $ENV{'HTTP_USER_AGENT'} && $ENV{'HTTP_USER_AGENT'} =~ /Mozilla.[3-9]/ && $ENV{'HTTP_USER_AGENT'} !~ /[Cc]ompatible/ ) {
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# Search for real Netscape 3 and up. http://www.browsercaps.org used as source of
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# browsers compatbile with server-push. It's a Netscape hack, incompatbile
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# with MSIE and Lynx (at least). Even Communicator 4.51 has bugs with it,
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