title: Allow access for chrome://cache/ and chrome://view-http-cache pages from background page
body: <p>I'm writing extension for google chrome and i need to have access to chrome cache. It might be possible if i have access for chrome://cache/ and chrome://view-http-cache/[url] pages from extension but i can`t found way how to do this. </p>
  
  <p>Is possible to do this in chrome extension context?</p>