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2014-11-09 16:57:34 -0500 commented question Can't connect to notebook browser interface

I get no message at all in the browser, there simply is no response at the port where the notebook shall listen. And no, I have no firewall nor antivirus or anything that could interfere.

2014-11-02 12:37:26 -0500 asked a question Can't connect to notebook browser interface

I've downloaded Sage 6.3 from AUR, and it works OK in terminal, but I can't connect via browser:

~> sage
┌────────────────────────────────────────────────────────────────────┐
│ Sage Version 6.3, Release Date: 2014-08-10                         │
│ Type "notebook()" for the browser-based notebook interface.        │
│ Type "help()" for help.                                            │
└────────────────────────────────────────────────────────────────────┘
sage: notebook()
The notebook files are stored in: sage_notebook.sagenb
┌────────────────────────────────────────────────┐
│                                                │
│ Open your web browser to http://localhost:8080 │
│                                                │
└────────────────────────────────────────────────┘
Executing twistd  --pidfile="sage_notebook.sagenb/sagenb.pid" -ny "sage_notebook.sagenb/twistedconf.tac"
/opt/sage/local/lib/python2.7/site-packages/Crypto/Util/number.py:57: PowmInsecureWarning: Not using mpz_powm_sec.  You should rebuild using libgmp >= 5 to avoid timing attack vulnerability.
  _warn("Not using mpz_powm_sec.  You should rebuild using libgmp >= 5 to avoid timing attack vulnerability.", PowmInsecureWarning)
2014-11-02 19:29:59+0100 [-] Log opened.
2014-11-02 19:29:59+0100 [-] twistd 13.2.0 (/opt/sage/local/bin/python 2.7.8) starting up.
2014-11-02 19:29:59+0100 [-] reactor class: twisted.internet.epollreactor.EPollReactor.
2014-11-02 19:29:59+0100 [-] QuietSite starting on 8080
2014-11-02 19:29:59+0100 [-] Starting factory <__builtin__.QuietSite instance at 0x7f4b7f7ab830>

It opens browser, but there I get "Connection Refused" message and white screen. I'm running 64bit Arch Linux. Any ideas?