serverUrl fails on non-standard port

[Nicals]

On non standard port, the server url is

<protocol>://host(:<port>)?

Despite the example given, the actual way can't handle such requests. A request from http://localhost:8000 will return a server url as http://localhost:8000:8000 resulting on a browser error since the Location header is incorrect.

[nodiscc]

@Nicals Thanks, this is part of #17

[nodiscc]

@Nicals Can you recheck agains the latest master? #98 has been merged and should fix this. Thanks

[nodiscc]

No reply, closing.