How does Perl access POST parameters when SSL is used? -

i have generic html form pass parameters perl script , retrieves values , formats them. ssl implemented, , parameters no longer being passed to, or perhaps in format perl script can interpret. how perl access post parameters when ssl used?

sample fields//

    <form action="script.pl" method="post">      enter initial year (1800-2008):      <input name="first" id="first" type="text" size="4" maxlength="4">      enter final year (1800-2008):     <input name="final" id="final" type="text" size="4" maxlength="4" value="2007"> <input name"submit" id="submit" value="submit"> </form> 

sample perl//

require 'cgi-lib.pl'; first: $in{'first'} final: $in{'final'} ; exit;