title: question about size (bytes) of webpage retrieved using erlang
body: <p>I have got a question about <code>http:request(...)</code> in erlang.</p>
  
  <p>When I retrieve a page using the above command (for example the main page of an apache webserver), I have in my headers list the value <code>{"content-length","177"}</code>, which seems right, because using byte_size(...) on the body of the page I get the same result..this suggests me that the size of the page is 177 bytes.</p>
  
  <p>I checked this result using <code>Tools -&gt; page info</code> option in firefox, but it says that the size is 146 bytes...can you tell me why there is this difference?</p>