Glynn Clements wrote:
Jake Ravenwood wrote:
i have a linux/apache2 newly setup. i put it online last week but
after a day, i got a lot of email/phone complaints saying they are
seeing old pages/old contents of the site. My site changes
frequently(daily). after checking i found that apache has
ExpiresDefault A2419200 which spells to 28days. I changed it to
ExpiresDefault A0 and reload Apache. Some end-users are now seeing the
new content but some are still seeing the old pages. What else i
missed?
If someone already has a cached version with the 28-day expiry, their
web browser (or an intermediate proxy) is likely to keep using it
until it expires or until they force a reload. Nothing you do to your
web server can force those existing copies to expire prematurely.
hi Jake,
try adding those meta tags to your (x)html files (into the head part of
course):
<meta http-equiv="expires" content="-1">
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
this won't force your clients to reload the page, but it should suppress
future caching. it's just html, so sure not every browser will interpret
that.
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