1*1719Szelenkov@nginx.comdef application(environ, start_response):
2*1719Szelenkov@nginx.com
3*1719Szelenkov@nginx.com    h = (k for k, v in environ.items() if k.startswith('HTTP_'))
4*1719Szelenkov@nginx.com
5*1719Szelenkov@nginx.com    start_response('200', [
6*1719Szelenkov@nginx.com        ('Content-Length', '0'),
7*1719Szelenkov@nginx.com        ('All-Headers', ','.join(h))
8*1719Szelenkov@nginx.com    ])
9*1719Szelenkov@nginx.com    return []
10