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RajeshKumarYadav.com
RajeshKumarYadav.com

Posted on • Updated on

HTML : App Cache [deprecated]

With app cache it is easy to make an offline version of a web application, by creating a cache manifest file.

What is App Cache?

HTML5 introduces application cache, which means that a web application is cached, and accessible without an internet connection.

Advantages:

  • Offline browsing - users can use the application when they're offline
  • Speed - cached resources load faster
  • Reduced server load - the browser will only download updated/changed resources from the server

How to enable app cache?

To enable application cache, include the manifest attribute in the document's tag:

<!DOCTYPE HTML>
<html manifest="index.appcache">
...
</html>
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Basic Example of HTML5 cache

This is our index.html file -

<!DOCTYPE html>
<html manifest="index.appcache">
<body>
 <p>Content</p>
</body>
</html>
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then we will create index.appcache file with below codes

CACHE MANIFEST
index.html
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write those files that you want to be cached load index.html then go for offline mode and reload the tab.

Note: The two files must be in the same folder in this example.

More details can be found at - https://developer.mozilla.org/en-US/docs/Web/HTML/Using_the_application_cache

Unfortunately this feature is in progress of being deprecated so please do not use for your upcoming projects

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Top comments (5)

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rajeshkumaryadavdotcom profile image
RajeshKumarYadav.com Author • Edited on

Thanks Raghav, I already have mentioned this method is deprecated and this article is just for information only and we should not use app cache to our current and upcoming projects.

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ike5 profile image
Ike Maldonado

That's too bad that it's been deprecated. What other alternatives do we have?

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rajeshkumaryadavdotcom profile image
RajeshKumarYadav.com Author

This could have been more useful but deprecated.

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Sorry, it's true.