"url" is None during error template rendering #1069
Description
Steps to reproduce:
- Assume CWS is running in multi-contest mode and listening on
localhost:8888 - Run
telnet localhost 8888 - Request a non-existing contest page:
GET /zzz HTTP/1.1
Host: localhost
- Actual output:
HTTP/1.1 404 Not Found
Server: TornadoServer/4.5.3
Content-Type: text/html; charset=UTF-8
Date: Tue, 06 Nov 2018 18:25:50 GMT
Content-Length: 224
Set-Cookie: zzz_login=""; expires=Mon, 06 Nov 2017 18:25:50 GMT; Path=/
Set-Cookie: _xsrf=2|47f2b7e0|d92adbae5745d453d5769a29a88df401|1541528750; Path=/
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Error 404***OUTPUT STOPS HERE***
- After that the server is still listening and responds to further requests on the same connection.
Environment: Ubuntu 18.04 with Python dependencies installed from the system; CMS is built from master and runs with Python 3.
We can also see that the server tries to set cookies for the non-existent contest.