Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • DART Cookbook
  • Toc
  • feedback
DART Cookbook

DART Cookbook

By : Ivo Balbaert
4 (2)
close
DART Cookbook

DART Cookbook

4 (2)
By: Ivo Balbaert

Overview of this book

If you are a Dart developer looking to sharpen your skills, and get insight and tips on how to put that knowledge into practice, then this book is for you. You should also have a basic knowledge of HTML, and how web applications with browser clients and servers work, in order to build dynamic Dart applications.
Table of Contents (13 chapters)
close
12
Index

Using application cache to work offline


When, for some reason, our users don't have web access or the website is down for maintenance (or even broken), our web-based applications should also work offline. The browser cache is not robust enough to be able to do this, so HTML5 has given us the mechanism of ApplicationCache. This cache tells the browser which files should be made available offline. The effect is that the application loads and works correctly, even when the user is offline. The files to be held in the cache are specified in a manifest file, which has a .mf or .appcache extension.

How to do it...

Look at the appcache application; it has a manifest file called appcache.mf.

  1. The manifest file can be specified in every web page that has to be cached. This is done with the manifest attribute of the <html> tag:

    <html manifest="appcache.mf">
    

    If a page has to be cached and doesn't have the manifest attribute, it must be specified in the CACHE section of the manifest file. The...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech
bookmark search playlist font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete