Offline

To make web apps work offline use Cache Manifest

Manifest file

  • CACHE MANIFEST - Files listed under this header will be cached after they are downloaded for the first time.
  • NETWORK - Files listed under this header require a connection to the server, and will never be cached.
  • FALLBACK - Files listed under this header specifies fallback pages if a page is inaccessible.

Example

CACHE MANIFEST:
/theme.css
/logo.gif
/main.js

NETWORK:
login.js

FALLBACK:
/html/ offline.html   # would serve offline.html as a fallback

Overriding cache

Once an application is cached, it remains cached until one of the following happens:

  • The user clears the browser's cache
  • The manifest file is modified
  • The application cache is programmatically updated

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