MOBILE WEB BROWSING DEVICE

摘要

The origin server which supplies content to a client mobile web-browsing device can tag content (e.g. a homepage) as 'persistent' by applying a special definition to that content. The content and accompanying definitions are then sent to the device over the cellular network. The browser on the device is programmed to recognise this definition and to set an appropriate flag against that content; the flag defines how the device uses the content - in particular, defining that the device will not discard that content from memory even when flushing the cache to free up disc space. Hence, flagged home pages can become persistent since they are not discarded from memory; as such they can reliably be viewed even when the device is out of cellular coverage and the device has freed up disc space.