Update: Indeed, I stupidly forgot to include a Content-Type in the request headers, ++ to the helpful monks who replied. As well, I will take friedo's advice and look into the existing library mentioned.

Fair warning, this is not a strictly perl question, but rather also involves the javascript XMLHttpRequest class.

I'm sending a POST request from from a client-side page using javascript: 

var xmlhttp = new XMLHttpRequest();
xmlhttp.open("POST", "process.pl", true);
xmlhttp.onreadystatechange=handleHttpResponse;
xmlhttp.send("foo=bar");

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However, in the target perl script, The CGI module can't seem to find the contents of the POST request: 
$q = new CGI;
print $q->header('text/plain');
print $q->param('foo'); # returns undef

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If I send the request as a GET, it works just fine and appears in $ENV{QUERY_STRING} where CGI.pm expects it, but the data I will be sending is faaar too big for a GET request.

Does anyone have an idea what this problem is, or how to fix it? Thanks for taking the time to read this, I would really appreciate any help!

__________
Build a man a fire, and he'll be warm for a day. Set a man on fire, and he'll be warm for the rest of his life.
- Terry Pratchett

In reply to Perl's CGI.pm and Javascript's XMLHttpRequest (SOLVED) by EvanK

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