So: If you don’t use Ok Http, definitely check it out :-)Know your enemy. As a result, the ability to cache and reuse previously fetched resources is a critical aspect of optimizing for performance.update itself, maybe to a transient state.

Don’t show a progress dialog and wait for the server response to update the view.

Say goodbye to the ugly error message when the user is offline.

Note that you may sometimes have to reload to get the newest version.

In this chapter, we will explore what you can do with offline HTML5 applications.

However, when you do have an Internet connection, web applications can always be up-to-date, because the code loads from a remote location on each use.

If your applications require only occasional communication, they can still be useful as long as the application resources are stored locally.

As this is going on, a number of events get fired on the than another if it was created after the other (in other words, application caches in an application cache group have a chronological order).

Only the newest application cache in an application cache group can have its completeness flag set to incomplete; the others are always all complete. It is used during the application cache download process to ensure that new master entries are cached even if the application cache download process was already running for their application cache group when they were loaded.

In order to enable users to continue interacting with Web applications and documents even when their network connection is unavailable — for instance, because they are traveling outside of their ISP's coverage area — authors can provide a manifest which lists the files that are needed for the Web application to work offline and which causes the user's browser to keep a copy of the files for use offline.

To illustrate this, consider a simple clock applet consisting of an HTML page "Now, if the user goes to the page, the browser will cache the files and make them available even when the user is offline.

To enable rapid access, Opera uses your computer's memory to store recently visited webpages.

It's generally a good idea to let Opera handle memory caching automatically.

If the device is offline, retry whenever the device get’s back online.