If I understand the doco correctly, this should cache the
page for 10 minutes.
However, if I view the source page the "time generated" that
I have output in the comment is currently 40 minutes old -
indicating to me that the cache hasn't been "flushed" after the 10
mins as expected.
I'm not sure where the problem could be. Is my code correct?
Or is there some server configuration I need to check?