I'm copying a large documentation site that has a lot of CDN hosted
images/pdf's.  Those image url's have an expiration unix timestamp as well as
some other tokens/id's in the query string.  These query string values are
required for the image to load.  The images expire in minutes.

Unfortunately a lot of the images are expired by the time httrack downloads
them.  Is there a way to force httrack to download those images immediately
after downloading the html to capture them before the URL expires?