Skipfish will not log in to crawl destination but fails without good error

[GoogleCodeExporter]

Using V 2.10b on Ubuntu 12.04 64 bit

the following command fails

cd /home/stew/skipfish-2.10b
./skipfish   -u -v   --config ../skipfish.conf   -o 
/var/www/scan/clients/peer1/loggedin    -S 
/home/stew/skipfish-2.10b/dictionaries/minimal-peer1.wl   
https://us.peer1.fullfatthings.com/portal


 cat ../skipfish.conf
auth-form=https://us.peer1.fullfatthings.com/user
auth-user=fftlivedemo
auth-pass=xxxxxx
auth-verify-url=https://us.peer1.fullfatthings.com/portal/account/users
auth-user-field=name
auth-pass-field=pass
#auth-form-target=https://us.peer1.fullfatthings.com/user

The https://us.peer1.fullfatthings.com/ URL is protected via Basic Auth 
externally but to the server that skipfish is running on a basic Curl returns 
200 and OK

curl -Ik https://us.peer1.fullfatthings.com/user
HTTP/1.1 200 OK
Server: nginx
Date: Tue, 07 May 2013 09:19:11 GMT
Content-Type: text/html; charset=utf-8
Connection: keep-alive
Keep-Alive: timeout=10
Vary: Accept-Encoding
X-Powered-By: PHP/5.3.24-1~dotdeb.0
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Last-Modified: Tue, 07 May 2013 09:19:11 +0000
Cache-Control: no-cache, must-revalidate, post-check=0, pre-check=0
ETag: "1367918351"
Content-Location: https://us.peer1.fullfatthings.com/user
Content-Language: en
X-UA-Compatible: IE=edge,chrome=1
Link: <https://us.peer.fullfatthings.com/user>; 
rel="shortlink",<https://us.peer.fullfatthings.com/user>; rel="canonical"

The actual error message that we get back is:

./skipfish   -u -v   --config ../skipfish.conf   -o 
/var/www/scan/clients/peer1/loggedin    -S 
/home/stew/skipfish-2.10b/dictionaries/minimal-peer1.wl   
https://us.peer1.fullfatthings.com/portal
skipfish web application scanner - version 2.10b
*- Authentication starts
*-- Could not login. Please check the URL and form fields
[-] PROGRAM ABORT : Authentication failed (use -uv for more info)

    Stop location : main(), src/skipfish.c:714

Original issue reported on code.google.com by [email protected] on 7 May 2013 at 9:21