HTML HTML 5 Cache
Remarks
The manifest file is a simple text file, which tells the browser what to cache (and what to never cache). The recommended file extension for manifest files is: ".appcache" The manifest file has three sections:
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
