title: How to force ISO-8859-1 encoding for form data using LWP::UserAgent?
body: <p>It seems that LWP::UserAgent always encodes form data as UTF-8, even if explicitely encode it as ISO-8859-1 as follows:</p>
  
  <pre><code>use Encode;
  use LWP::UserAgent;
  use utf8;
  
  my $ua = LWP::UserAgent-&gt;new;
  $ua-&gt;post('http://localhost:8080/', {
      text =&gt; encode("iso-8859-1", 'è'),
  });
  </code></pre>
  
  <p>Request content is <code>text=%C3%A8</code>. How can I have <code>è</code> encoded as <code>%E8</code> instead?</p>