My brain is starting to hurt.

I checked LWPcook, I read the other posts, all to no avail. I am trying to write a script that will grab successive web pages. The first step is to fill out a form and submit it through https to a JavaScript that will take the values given and generate a successive page, which I will also (down the road) need to munge. The relevant part of my script is: 

$JSRequest = new HTTP::Request;
# create new request

%choices = (circuit => 'c7', district=> 'ALL', judge_type => '', jobSe
+arch_year => '', judge_first => '',
judge_last => '', open => 'R', closed => 'R', term => 'R', perm => 'R'
+, TAB => 'viewJob',
pos_open => 'on', pos_close => 'on', pos_term => 'on', pos_perm => 'on
+', order_by  =>'A', 
search => 'javascript:verify(document.forms[0])');
# save choices as associative array

$JSRequest->header(Content-type => 'form-data');
# set content type

$JSRequest = POST "$site", %choices;
# Fill in all values expected by the form

$JSRequestResult = $ua->request($JSRequest);
# save response of the request stored in $JSRequest

[download]
The problem is this returns a few headers and then "You do not have a value in the TAB field." The tab field is defined in %choices. If I make 
$JSRequest = POST "$site", %choices;

[download]
into 
$JSRequest = POST "$site", \%choices;

[download]
I get: 500 Internal Server Error

and I have no way to check why, as the web server is not something to which I have access.

My question is: why am I getting this error? Does anyone have any ideas about how I could do this differently?

--- Chaos, fear and panic. My work here is done.

In reply to At wit's end with LWP/https by Shikko

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