title: What does Mechanize br.set_handle_gzip() do?
body: <p>Copying the setup of a mechanize browser from a tutorial I set <code>br.set_handle_gzip(True)</code>. When I scrape a site with the browser object python prints <code>UserWarning: gzip transfer encoding is experimental!</code> This <a href="https://stackoverflow.com/a/13213679/2327821">answer</a> from a year ago explains that setting it to <code>False</code> will make the error message go away. Ok, obviously, but what does this setting actually control? What type of content would require this feature? Is it ok to turn it off if the page is just basic html?</p>