UPDATE: I figured it out. It turns out asking for "http://www.google.com" is very different from asking for "http://www.google.com/". Thanks to everyone who replied. Original post is below. I understand that the answer to this question is going to be something like, "You're missing a hyphen, jackass!" But I've banged my head against the wall long enough. This script should hit my HTTP proxy, retrieve the Google front page, and display the HTTP return code and the HTML content to standard output. I think. 
use strict;

use LWP::UserAgent;

our $ua = LWP::UserAgent->new;
$ua->proxy('http', "http://localhost:8080");

my $url = "http://www.google.com";

my $response = $ua->get($url);

print $response->status_line, "\n";
print $response->content, "\n";

[download]
Running it returns "400 Invalid header received from browser". I know the proxy works because both Mozilla and Wget are happy to use it. It's possible that the proxy requires broken HTTP that both of those use and LWP::UserAgent doesn't, I suppose. Any help would be much appreciated.

In reply to HTTP Proxy Madness by digamma

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