OFFLINE APPS
< TUTORIALS
< HTML5
< WEB
< giuliano.luis
Get flash to fully experience Pearltrees
September 27, 2009 If you are looking to provide offline access to your web app, the Offline Application Cache available in HTML5 is killer. However, it's a giant PITA to debug, especially if you're still trying to get your head around it. If you are struggling with the cache manifest, add the following JavaScript to your main HTML page and view the output in the console using Firebug in Firefox or Debug > Show Error Console in Safari. If you have any questions, PLMK in the comments.
Introduction It's becoming increasingly important for web-based applications to be accessible offline. Yes, all browsers have caching mechanisms, but they're unreliable and don't always work as you might expect. HTML5 addresses some of the annoyances of being offline with the ApplicationCache interface. Using the cache interface gives your application three advantages: Offline browsing - users can navigate your full site when they're offline Speed - cached resources are local, and therefore load faster.
Taking your web sites and apps offline with the HTML5 appcache There’s a general (and understandable) belief by even many developers that web sites and web applications can only be used when the browser has a web connection. Indeed, this is routinely cited as one of the real advantages of “native” apps over web apps. But as unintuitive as it sounds, in almost every modern browser and device (except even for now IE10 developer previews, but here’s hoping that changes), that’s not the case, provided the developer does a little extra work to make their app or site persist when a browser is offline. (Of course the user must have visited your site while their browser did have a connection)
Posted by weimenglee 3 years 1 week ago One of the several features outlined in the HTML 5 specification is the support for Web applications that continue to work while they are offline. This feature is very useful for Web applications because a Web application can be loaded just once and then run offline without needing a persistent Internet connection, making it behave just like a locally installed native application. Dashcode supports the manifest attribute available in the HTML 5 specifications for offline web applications. And so in this article, you will learn how to write offline iPhone Web applications using Dashcode.
HTML5 features appcaching, a way to make your web sites and apps work offline, and to increase their performance as well. To learn more about the HTML5 appcache, read our comprehesive overview to get you started. So what does manifestR do? manifestR is a bookmarklet, which you drag to your bookmarks bar. Then, when you visit any page, you can click the manifestR button, and it will create an HTML5 appcache manifest file for that page.