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Enable offline data storage and synchronization using websql and ajax on a web app.
1. Check if data is in database
2. Generate listviews and update dialogs from websql storage.
3. Check for changes / updates on server to sync in local db when connecting to server.
4. Only fetch new rows of data or updates to minimize online data usage.
5. Enable updates and added rows to be stored locally when in offline mode including images. When returning to online mode send data to server and require server response message to confirm addition and update row id as necessary locally.
This is for the "products" page only.
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