compat_urlparse.urljoin(url, '/talks/%s' % display_id))
# Older versions of Firefox get redirected to an "upgrade browser" page
req.add_header('User-Agent', 'youtube-dl')
compat_urlparse.urljoin(url, '/talks/%s' % display_id))
# Older versions of Firefox get redirected to an "upgrade browser" page
req.add_header('User-Agent', 'youtube-dl')