Another feature thatâs coming along, into Firefox 3, from the WHATWG Web Applications 1.0 spec is that of Online/Offline events. This feature serves as the second piece to the âOffline Web Applicationâ puzzle (The first being DOM Storage), thatâs really coming into place in Firefox 3. What is the purpose of offline events? Effectively, in order to build a good offline application, you need to know
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