Google Chrome developers are experimenting on a new 'back/forward cache' that would make loading the previous page instant since if you close a web page on the browser, it has to load most of the page again which is time-consuming. Chrome engineering manager Addy Osmani, on the Google Developers site, mentioned, "we are exploring a new back/forward cache to cache pages in-memory (preserving JavaScript & DOM state) when the user navigates away. This is definitely not a trivial endeavor but if it succeeds it will make navigating back and forth very fast." This means when you click on a link on a page, this feature will keep the original page frozen in memory. If you press back, the frozen page is instantly resumed. The Chrome team estimates this could "improve performance up to 19% of all navigation" on the Android version. This doesn't mean that Chrome is the only browser to be working on this, Firefox back in 2005 has used back/forward caching to some extent since Firefox 1.5, but it seems to be disabled for HTTPS sites. Safari has also had a variant of it since 2009. Since this feature is still in the early stages, and there is still security and compatibly issues to figure ...
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