id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
29343	"static file serving fails with ""Connection reset by peer"" on HEAD requests"	Yehor Smoliakov	Jannik Schürg	"In developer mode I ran this command in the console:


{{{
curl --head http://127.0.0.1:8000/media/blog/author/UqdQXbTuSjW_UbGCNMhFpA.jpg
}}}

And got this exception:


{{{
[20/Apr/2018 10:36:43] ""HEAD /media/blog/author/UqdQXbTuSjW_UbGCNMhFpA.jpg HTTP/1.1"" 500 59
----------------------------------------
Exception happened during processing of request from ('127.0.0.1', 49750)
Traceback (most recent call last):
  File ""/usr/lib/python3.6/wsgiref/handlers.py"", line 138, in run
    self.finish_response()
  File ""/usr/lib/python3.6/wsgiref/handlers.py"", line 180, in finish_response
    self.write(data)
  File ""/usr/lib/python3.6/wsgiref/handlers.py"", line 279, in write
    self._write(data)
  File ""/usr/lib/python3.6/wsgiref/handlers.py"", line 453, in _write
    result = self.stdout.write(data)
  File ""/usr/lib/python3.6/socketserver.py"", line 775, in write
    self._sock.sendall(b)
ConnectionResetError: [Errno 104] Connection reset by peer

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File ""/usr/lib/python3.6/wsgiref/handlers.py"", line 141, in run
    self.handle_error()
  File ""/home/yehor/.local/share/virtualenvs/webapp-Dlno2ZDu/lib/python3.6/site-packages/django/core/servers/basehttp.py"", line 86, in handle_error
    super().handle_error()
  File ""/usr/lib/python3.6/wsgiref/handlers.py"", line 368, in handle_error
    self.finish_response()
  File ""/usr/lib/python3.6/wsgiref/handlers.py"", line 180, in finish_response
    self.write(data)
  File ""/usr/lib/python3.6/wsgiref/handlers.py"", line 274, in write
    self.send_headers()
  File ""/usr/lib/python3.6/wsgiref/handlers.py"", line 331, in send_headers
    if not self.origin_server or self.client_is_modern():
  File ""/usr/lib/python3.6/wsgiref/handlers.py"", line 344, in client_is_modern
    return self.environ['SERVER_PROTOCOL'].upper() != 'HTTP/0.9'
TypeError: 'NoneType' object is not subscriptable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File ""/usr/lib/python3.6/socketserver.py"", line 639, in process_request_thread
    self.finish_request(request, client_address)
  File ""/usr/lib/python3.6/socketserver.py"", line 361, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File ""/usr/lib/python3.6/socketserver.py"", line 696, in __init__
    self.handle()
  File ""/home/yehor/.local/share/virtualenvs/webapp-Dlno2ZDu/lib/python3.6/site-packages/django/core/servers/basehttp.py"", line 154, in handle
    handler.run(self.server.get_app())
  File ""/usr/lib/python3.6/wsgiref/handlers.py"", line 144, in run
    self.close()
  File ""/usr/lib/python3.6/wsgiref/simple_server.py"", line 35, in close
    self.status.split(' ',1)[0], self.bytes_sent
AttributeError: 'NoneType' object has no attribute 'split'
----------------------------------------

}}}
"	Bug	closed	HTTP handling	2.0	Normal	duplicate		Jannik Schürg Dave Johansen	Accepted	1	0	1	0	0	0