Portal 10g cache sucks

I've been struggling for a whole week now with caching issues on portal 10g (9.0.4 -linux).
Like other postings in this forum I get pages from another previous session in my browser, and since my portlets are browser dependent, this is very annoying: I get the page on a windows - ie just as the where made on the first visit as konqueror on linux.
Putting the cache off did not help: I stopped the webcache and the portal cache, same song allover again.
But for all who is having the same problem, I found a workaround that seems to work (only for own build portlets): I just put an extra parameter on the page (I called it ts - from timestamp) and give it the value of the millisecond the page was made. eg: &ts=20040306232915765, this seems to force the page to be regenerated (since it has a different parameter every time again).
Note: As I saw in some postings, one suggest to set the browsercache to 'every visit': sorry, you can't expect the whole world visiting your pages to do so!!!

Leo.
The browser cache setting for every visit to the page is a mandatory requirement to ensure that the content is managed in a timely and expeditious manner. If the user's browser is caching content then we (and you) cannot control the update of that content, and you will (as you've experienced) end up with stale content.
The 10g cache does not 'suck'. From the description you have given here, you are implying that you have turned on 'FULL PAGE' caching which causes 2 things to happen, the fully parsed and generated page is stored in the file cache for a specified period of time. The fully parsed and generated page is cached in the user's browser cache for a period of time (specified by you). When using this type of caching even if you clear the file cache you will still retain the cached objects in the browser cache for the stated retention period, only after that period has expired will the content be regenerated.
The reason the content regenerates when you add a parameter is because this forces the regeneration of a new and differing object (uniquely identified by the URL) which will subsequently be added to the cache.
If I have not described your scenario, please provide some more details about the types of portlets you have written, the pages they are placed on, and the caching decisions you have taken with regard to those portlets and pages.
JP

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