Making a HTTP request from a URL
Initial test for initiating a URL read from a change object (FILE operation)
no content is actually read from the web server yet.
The "from" spec can either be a file spec, in which case the URL is read
from the first line of the file OR a direct URL reference, prefixed by http://
In either case INI file mappings are applied to the from file name/URL
idkbase note 44