![]() Provocative thoughts by - Experimenting With HTML5's Cache Manifest For Offline Web ApplicationsĬurious about something, Ben: Why the toBinary(toBase64())? So, if this doesn't work right off the bat, you might have to restart your browser. Then, I restarted my FireFox and blam - it starts working. For two days I kept checking my spelling and my linking to no avail. NOTE: When I first started playing around with the cache manifest, I was having the hardest time getting the offline cache to be recognized. As I have stated before, where I'd like to go with this research ultimately, is building my Dig Deep Fitness web application to run as if it were a native application on the iPhone. I didn't do too much with my desktop Safari research, but it was mighty awesome to see this working in Offline mode in FireFox and in Airplane mode on the iPhone. I was able to get this example running in FireFox, Safari, and on my iPhone (didn't test any other browsers). The cache manifest seems like a very cool feature of HTML5. These link tags are not relevant to the cache manifest but, they are indicative of where I want to go with this type of HTML5 exploration - building native-esque web applications for the iPhone. ![]() This is the full-screen mode that can be achieved when the given URL is added to the home screen of the iPhone. These LINK tags are specific to the Apple iPhone and are used to define the Icon and Startup screen graphics to be used when the web application is running in "App Mode". In the list page, you may have noticed a few bizarre LINK tags. As long as a user hits the list page first, the cache manifest will be downloaded and the view pages should be cached automatically. I am including the cache manifest link in the view page as well although, I don't believe it is required. The "view" page that I am linking to does nothing more than take the given ID and dynamically generate an IMG tag. There are other ways to do this, but for my experiment, this was the lowest-hanging-fruit solution. Because we are caching dynamic pages, each "dynamic version" of the page needs to be individually listed out in the cache manifest. Just as in a CSS file, the resource paths listed in the cache manifest can be full URLs or URLs relative to the location of the cache manifest file. As this point - when the cache is invalidated - the entire list of cachable resources must be downloaded again. This last point means that if any part of the cache manifest changes, including any of the comments (#), that cache is invalidated. And three, the entire cache manifest file is versioned by byte. Two, the file must be served up as the mime-type, "text/cache-manifest". One, the phrase, "CACHE MANIFEST", must be the very first piece of content in the cache manifest file. When it comes to the cache manifest, there are few essential points to understand. Notice that these can be dynamic pages as long First, because cache manifest is part of HTML5, we need to use the HTML5 doctype: When it comes to the cache manifest, there are two crucial things going on here.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |