You're looking for one of these
A filtering/caching web proxy
http://search.cpan.org/dist/HTTP-Proxy/
http://www.stonehenge.com/merlyn/WebTechniques/col11.html
http://www.stonehenge.com/merlyn/WebTechniques/col34.html

In reply to Re^2: Wrapping and modifying web pages by Anonymous Monk
in thread Wrapping and modifying web pages by Sixtease

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