More clarifications on caching of images

[Malte Sussdorff]

Following up on my previous post I tried to use the proxy_store  
directive and it worked.

I just had to make sure that I translate on my server "/portraits? 
user_id=32476" into "/image/32477" where 32477 is the image_id of the  
user 32476.

Why did I not just use the user_id? Well, the image could change  
(e.g. user uploads a new picture) and then we would not pick this up.

Cheers
  Malte

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cognovís GmbH & Co. KG
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