SSL and content-type

I am trying to switch to a secure server. Currently, when running an
unsecure server I call a php page, called download.php, and it prints
out two headers and then a comma separated list that it will drop into a
file that I can use a spreadsheet on. The code looks like this:
 
      header("Content-Type: text/comma-separated-values");
      header("Content-Disposition: application;
filename=ClassRoster.csv");
      $class = $classid;
      $tdata = tpl_class_roster('download');
      $csv->show($tdata);

The header() routine adds the stirngs to the headers and the $csv-show()
has the two dimensional array displayed in a comma separated list
format. This works perfectly fine when I don't use a secure server and
access this using http:.
 
When I switch to a secure server all the other pages work fine, but this
one the browser complains that it can't find or access the file.
now if I comment out the first header line:
 
/*
 header("Content-Type: text/comma-separated-values");
*/
      header("Content-Disposition: application;
filename=ClassRoster.csv");
      $class = $classid;
      $tdata = tpl_class_roster('download');
      $csv->show($tdata);

Then I do get the two dimensional array to show up on the screen in the
comma seperated list format as plain text, it doesn't bring up the
spreadsheet.
 
Is there something else I need to do, add another header or set some
httpd setting to allow the Content-Type header above to operate in the
same manner that it does when not running httpd in secure mode ?
 
Is this some browser option that does not like the Content-Type header ?
 
Any pointers would be appreciated.
 
Thanks
 
Chris Kottaridis
Customer Support Engineer
Wind River Systems
719-522-9786

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