
One of our Drupal sites we had worked on required us to implement region based content filtering and it was to be done through a value stored in a session. The Drupal site was also using Boost to enable static page caching. Boost stores pages as HTML files inside a cache folder and each page is served from the cache for anonymous users. To implement the filtering process successfully for anonymous users, we had to find a way to alter the URLs for the selected region. Read on to know how to alter URLs in a Drupal 6 website.