Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories
Reexamination Certificate
1998-05-27
2001-11-06
Cabeca, John W. (Department: 2752)
Electrical computers and digital processing systems: memory
Storage accessing and control
Hierarchical memories
C711S133000, C711S134000, C709S213000, C709S216000
Reexamination Certificate
active
06314492
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Technical Field of the Invention
This invention relates to control of a client browser. More specifically, it relates to control of a client browser cache by a server.
2. Background Art
Web confidential server data sites, bank balances, brokerage balances, and so forth, instruct a client to log out and clear the browser cache. Typically, the log out is performed by way of a tag on a web page, and the clearing of the cache is done by way of (for Netscape™) an options network preferences menu option which requires the user to activate a clear cache button on the dialog. This method of clearing cache is difficult for a user to find and easy to forget to do. Thus, while clearing a browser cache responsive to a user command is known in the art, there is a need for a system and method which enables a server, as distinguished from the browser, to control the web page contents, which may contain confidential data, of a browser cache.
It is, therefore, an object of the invention to provide a more reliable system and method for clearing a browser cache.
It is a further object of the invention to provide a system and method for clearing a browser cache which does not rely on user action.
It is a further object of the invention to provide a system and method for clearing a browser cache under control of the server.
It is a further object of the invention to provide an improved client browser responsive to a server tag to clear its cache.
SUMMARY OF THE INVENTION
This invention comprises a system and method for controlling the contents of a browser cache. The browser receives in a data stream from a host server a clear cache tag; and responsive to that clear cache tag, clears the browser cache.
Other features and advantages of this invention will become apparent from the following detailed description of the presently preferred embodiment of the invention, taken in conjunction with the accompanying drawings.
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“Creation of an Update Profile for Internet”, IBM Technical Disclosure Bulletin, vol. 40 No. 12 Dec. 1997 P. 13.
Allen Michael John
Furminger Jonathan Penn
Beckstrand Shelley M
Cabeca John W.
International Business Machines - Corporation
Peugh Brian R
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