Canary is a developer and beta version of Google Chrome's newest features. By allowing both versions of Chrome to run side-by-side, you can test out the newest features without sacrificing your stable version.
If you're using the most recent version of Canary, there's a new experimental feature that lets you view the offline cached versions of Web pages. Not sure if you have the most recent build? Easy fix. Just click the Settings icon in the top-right-hand corner, then choose About Google Chrome. Your browser will check for updates and apply any available.
So let's get into what this new feature does. Basically, if you try to visit a Web page you normally frequent and get a message that says "This Web page is not available," or you're having connection issues while loading the page, then this experimental feature can help. Instead of displaying the error message, Google will attempt to show you the most recent cached version of the Web page.
Sound good? Enabling this feature just takes a couple of quick steps and then you're set.
First, type chrome://flags or about:flags in the omnibox at the top of the window. Next, locate the entry that reads, "Enable Offline Cache Mode." Then, click the Enable link right below the text.
Just remember that this experimental feature only works on Web sites you've visited in the past. Hopefully you won't need to use this feature often, but if the issue pops up, you at least have a bit of a backup plan.