How do I cancel an internet 'Load' to cache in progress?

[Matt Denton]

Hey-ya all,

This may be a question for the patient Rev team:

How do I cancel a pending download to the cache, when using a Load 
command?  I want a user to be able to cancel a big download in progress, 
once it starts.  I've sifted through the 'See Also' and the internet 
library in the docs.

Any clues?  I thought maybe 'unload url <thisURL>' but that only works 
if it is in the cache...

Cheers

M@
Matt Denton