Force Browser to use cached page?

[nemonoman]

I know all the HEADER or META type codes to force (or at least encourage) browsers to refresh data.

Is there an OPPOSITE type of code to force browsers to use a cached page?

I have a very large javascript file called menu.js that controls -- menuing. My php page includes <script type=text/javascript src=menu.js>

Even though my headers include code like 'pragma no-cache', etc.,
IE for PC appears to load this file once, and then use the cached version thereafter. If I make a change to menu.js, I have to manually refresh the page to see the changed menu action. THIS IS OK, in fact what I want, because the file changes little if ever.

IE for the Mac, on the other hand, loads this whole file each time, and takes LONGER to do it each time.

How can I FORCE Mac IE to cache the file and read from the cached file?

Thanks.

[PHPdev]

Sorry this does not directly answer your question, but the reason the PC may not request the page every time and the mac does, could be to a setting in the internet options menu. If you goto Tools > Internet Options and then the Settings button under the Temporary Internet Files section, you can manually set the browser to request the page every time. I find this useful for debugging code. I have had the case where the browser just shows me the same old page, unless I tell it to request a new page every time.

Hope this can help

PHPDev

[nemonoman]

Since my program will likely be used by a great many unsophisticated users, I hope I can find a method where I (not the user) can achieve this desirable result.

[nemonoman]

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