MSDOC on HTTPS - issue

I've used this for a while to generate some MSDOCs and it works well.
However, I now have to move my site to HTTPS, and am finding that dynamic generation is failing with the same code. When I try to generate the doc
on a server set up for HTTPs, it errors out saying the browser can't download the file.

Anybody else run into a snag with this situation?

use header("Pragma: public") in output function