#29872: ConnectionAbortedError from Chrome cancelled preload
-------------------------------------+-------------------------------------
Reporter: hingston | Owner: nobody
Type: Bug | Status: new
Component: | Version: 2.1
Uncategorized | Keywords:
Severity: Normal | ConnectionAbortedError Preload
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 1
UI/UX: 0 |
-------------------------------------+-------------------------------------
Using the following code in a
[https://developers.google.com/web/updates/2017/02/navigation-preload
service worker to preload]:
{{{
addEventListener('activate', event => {
event.waitUntil(async function() {
// Feature-detect
if (self.registration.navigationPreload) {
// Enable navigation preloads!
await self.registration.navigationPreload.enable();
}
}());
});
}}}
Gives the following error when the page is cached by the service worker
and you F5 it attempts to preload and then cancels when the service worker
boots up:
{{{
"C:\Program Files\JetBrains\PyCharm 2018.2.4\bin\runnerw.exe"
C:\Users\Will\AppData\Local\Programs\Python\Python37-32\python.exe
C:/Users/Will/PycharmProjects/lolnames.gg/manage.py runserver 8000
Performing system checks...
System check identified no issues (0 silenced).
October 21, 2018 - 12:21:51
Django version 2.1.2, using settings 'lolnamesgg.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.
[21/Oct/2018 12:21:56] "GET /en/ HTTP/1.1" 200 11402
Traceback (most recent call last):
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 138, in run
self.finish_response()
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 180, in finish_response
self.write(data)
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 274, in write
self.send_headers()
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 332, in send_headers
self.send_preamble()
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 255, in send_preamble
('Date: %s\r\n' % format_date_time(time.time())).encode('iso-8859-1')
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 453, in _write
result = self.stdout.write(data)
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\socketserver.py",
line 796, in write
self._sock.sendall(b)
ConnectionAbortedError: [WinError 10053] An established connection was
aborted by the software in your host machine
[21/Oct/2018 12:21:56] "GET /en/ HTTP/1.1" 500 59
----------------------------------------
Exception happened during processing of request from ('127.0.0.1', 51128)
Traceback (most recent call last):
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 138, in run
self.finish_response()
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 180, in finish_response
self.write(data)
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 274, in write
self.send_headers()
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 332, in send_headers
self.send_preamble()
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 255, in send_preamble
('Date: %s\r\n' % format_date_time(time.time())).encode('iso-8859-1')
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 453, in _write
result = self.stdout.write(data)
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\socketserver.py",
line 796, in write
self._sock.sendall(b)
ConnectionAbortedError: [WinError 10053] An established connection was
aborted by the software in your host machine
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 141, in run
self.handle_error()
File "C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\site-
packages\django\core\servers\basehttp.py", line 86, in handle_error
super().handle_error()
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 368, in handle_error
self.finish_response()
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 180, in finish_response
self.write(data)
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 274, in write
self.send_headers()
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 331, in send_headers
if not self.origin_server or self.client_is_modern():
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\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
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\socketserver.py",
line 647, in process_request_thread
self.finish_request(request, client_address)
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\socketserver.py",
line 357, in finish_request
self.RequestHandlerClass(request, client_address, self)
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\socketserver.py",
line 717, in __init__
self.handle()
File "C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\site-
packages\django\core\servers\basehttp.py", line 154, in handle
handler.run(self.server.get_app())
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\handlers.py",
line 144, in run
self.close()
File
"C:\Users\Will\AppData\Local\Programs\Python\Python37-32\lib\wsgiref\simple_server.py",
line 35, in close
self.status.split(' ',1)[0], self.bytes_sent
AttributeError: 'NoneType' object has no attribute 'split'
----------------------------------------
}}}
Windows 10
Chrome 70
Django 2.1
Python 3.7
--
Ticket URL: <https://code.djangoproject.com/ticket/29872>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
--
You received this message because you are subscribed to the Google Groups
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to django-updates+unsubscr...@googlegroups.com.
To post to this group, send email to django-updates@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-updates/051.5a554b39ecedb8274db4c92b0299a642%40djangoproject.com.
For more options, visit https://groups.google.com/d/optout.
