Sorry for this sort of OT question. I'm trying to get a jsp page to refresh
with either response.setHeader("Refresh","30") or
response.setIntHeader("Refresh", 30). But I can find no sign of any
refreshing going on.

Does anyone have any clues as to what might prevent the refresh?

Exact code is: 
<% response.setIntHeader("Expires",30); %>

Thanks for any ideas,

Ken

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