Re^2: Help choosing the most efficient, dependable condition(al)

The preceding is a good way to go, but it you want slightly simpler I've done this before:

if (($ENV{'HTTP_ACCEPT'} || '') =~ /application\/xhtml\+xml/)
{
    print "content-type:application/xhtml+xml; charset=utf-8\n\n";
}else{
    print "content-type:text/html; charset=utf-8\n\n";
}
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It helps to remember that the primary goal is to drain the swamp even when you are hip-deep in alligators.

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