Browse with astonishing speeds while all resources cached from last 24-hours are shown with almost 0-delay, and any update is done in the background, if you visit same pages few times a day it will give you a huge-browsing speed-boost.
To see the full effect, please enable chrome://flags/#enable-stale-while-revalidate first, and restart the browser.
stale in
Cache-Control header: https://tools.ietf.org/html/rfc5861 (includes examples- but technical).
Developer's HUB / Changelog 2.0.9.1 + updating list-of-available, cache'able elements to Chrome's max value according to https://developer.chrome.com/extensions/webRequest , which adds media :] * improving caching-system, enabling cache for everything (tryout...) 2.0.8.5 - prefer stale for resources only (not pages) to improve stability. + allowing stale on XHR to speed up dynamic pages (YouTube!). * prefer using '--enable-stale-while-revalidate --enable-offline-load-stale-cache' command line switches to Chrome's-shortcut. The chrome-flag is removed on newer Chrome versions. 2.0.8.3 + have stale directive on my request types (but not XHR ones!) 2.0.8.2 + initial: (no versioning while was in-active alpha-stage :] ).