Caching problem for iViews with URL parameters

Hi,
We have a big problem with iView caching.
Our objective is to use SAP Netweaver Portal 2004s & External Facing portal for a public Internet Portal
For performances reasons we need to activate iviews caching on the principal iviews. But the problem is that a page called with different parameters generates exactly the same html result
example --> The display of a news item:
/irj/portal/anonymous/index.htm?rid=/news_123.xml
gives the same cached result as
/irj/portal/anonymous/index.htm?rid=/news_456.xml
The caching level is "shared" because all users are anonymous !
The iview caching seems to be occuring on component (iView) level and not on URL level
Can someone help ?
At the moment we have performances of 10 seconds for a page, and with caching it's becoming less than 1 second, so we really need the caching !!!
Thanks
Laurent

Hello
I hope you get your answer since, nevertheless it could help other.
Have you tried to put the cache level to "session" instead of "user" or "shared" at the iview level?
Regards
Benoit

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