[jQuery] (autocomplete) Is it possible to cache the empty results ?

[jQuery] (autocomplete) Is it possible to cache the empty results ?


Hello,
I am currently using the jquery autocomplete ($Id:
jquery.autocomplete.js 5785 2008-07-12 10:37:33Z) with remote data.
Obviously I did not disabled the cache and "matchSubset" option (all
matches of "foot" are a subset of all matches for "foo"), which
reduces the number of queries made to the server.
This is working well except in one case : if "foo" returns an empty
result set, continue by typing "foot" will still generate another
query to the server ...
From my point of view this shouldn't be useful (if "foo" doesn't
return results, "foot" won't either) and I am looking for a way to
have the same "cache usage" with empty result as with not-empty
results.
Does anyone have an idea of how this could be done or knows the reason
why there is this difference of behaviour ?
Thank you a lot for your help.