### Step 1: Please describe your environment

* ZeroNet version: 0.6.5 r3864, Python 2.7.11+, gevent 1.4.0
* Operating system: Ubuntu 16.04 ARM kernel 4.9.160-armada375
* Web browser: FF
* Tor status: available
* Opened port: yes

### Step 2: Describe the problem:

Hello, i installed zeronet on this Linux server with public IP
my zeronet.conf:
ui_ip = *
ui_port = 80
i want to use this server as a proxy accessible via its public IP address
during startup it says:
Ui.UiServer Web interface: http://*:80/
Ui.UiServer Added mypubliciphere as allowed host
But any site like ZeroHello, /Config says: **"Opened as child-window, stopping..."**
I am accessing it via:
http://publicIP/Config
http://publicIP:43110/Config

but the same. I also tried to replace zeronet.conf ui_ip by 127.0.0.1 or public IP, but that not fix this.

Also seen this message:
```[17:20:14] - UiWSGIHandler error: AttributeError: 'NoneType' object has no attribute 'settings' in UiServer.py line 40 > pywsgi.py line 924 > pywsgi.py line 908 > TranslateSitePlugin.py line 57 > UiRequest.py line 699 > UiRequest.py line 642
[17:20:15] Ui.UiServer No user found
[17:20:15] Ui.UiServer Error 403:
```

curl 127.0.0.1:43110 -L
curl publicip:43110 -L

```

Forbidden

Invalid Accept header to load wrapper

```

no other WARN/ERROR log lines in debug.log except "Ui.UiServer Error 403: Invalid Accept header to load wrapper"

UPDATE: in other browser (Chrome) it works and in same browser (Firefox) private browsing window also. In Firefox normal window it continue to not work even when doing clearing cache (Ctrl+F5). Strange is that other zeronet proxy with same revision and setup:
ui_ip = *
ui_port = 80
works ok where this new one do not. (shows "Opened as child-window, stopping)".

**UPDATE2**: after firefox restart, the page is loading OK