The page is not served with a cache control header

Hello,

I have this error in my mobile's page :

The page is not served with a cache control header.
This test is related to the following Best Practices: CACHING (techniques)

I don't understand this error.  Could you help me?
I try with some different meta but it's always the same error.Why???
for exemple :
<meta http-equiv="cache-control" content="max-age=100" />

I look forward to your answer.

A.B

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Received on Friday, 22 June 2007 14:49:39 UTC