Mobile Safari 5Mb HTML5 Application Cache Limit

Cache Manifest Size Limit and Web Apps

You can see more about limit capacity here: http://grinninggecko.com/developing-cross-platform-html5-offline-app-1/

Application Cache Manifest + Local Storage Size Limit

I have tested this in Chrome, Firefox, Opera and Safari and all browser use for both technique a limit of 5 mb. So it's possible...

Note:
- The limit of localStorage and Offline Application Caching varies per browser.
- IE doesn't support Offline Application Caching
- In Opera and Safari you can store more than 5mb of localStorage.
- In chrome you can check size of application cache by url: chrome://appcache-internals/ and localStorage in the map localStorage.

size of HTML5 offline cache

As of today, there isn't a consistent way for developers to go beyond the typical 5 meg limit.
Some browsers will prompt users to increase the limit, but others won't.

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