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Cached data detection

  • US 9,210,237 B2
  • Filed: 02/09/2015
  • Issued: 12/08/2015
  • Est. Priority Date: 04/06/2011
  • Status: Active Grant
First Claim
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1. A computing device comprising:

  • one or more processors; and

    one or more computer readable media having stored thereon multiple instructions implementing a program that, when executed by the one or more processors, cause the one or more processors to;

    receive at the computing device, from a remote service in response to a page request, a page and a session identifier associated with a usage session of the program, the computing device being remote from the remote service;

    send a cached data detection request targeting the remote service, the cached data detection request being a request for particular data and causing the computing device to check a local cache on the computing device to determine whether the particular data is present in the local cache;

    receive a response to the cached data detection request;

    after receiving the response, determine at the computing device, based on whether a particular indication is received with the response, whether the cached data detection response is provided by the remote service or by the local cache of the computing device, the particular indication not stored in the local cache but the response cached in the local cache; and

    determine at the computing device that data for the remote service is in the local cache if the cached data detection response is provided by the local cache, otherwise determine at the computing device that data for the remote service is not in the local cache if the cached data detection response is provided by the remote service.

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