Method for preventing parasitic usage of web page embedded files
First Claim
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1. A method of verifying a right to use an element of a web page hosted by a web server, the method comprising the steps of:
- every time a request is made from a client for a web page hosted by a web server, storing an indicator that said client has requested the web page hosted by said web server;
responsive to a request from a client for an element of said web page that is stored in a separate file from the web page and displayed as an embedded element of said web page, checking for said indicator that said client has requested said web page from said web server; and
responding to the request from the client for said element of said web page hosted by the web server according to the result of said checking step,wherein the element of said web page is eliminated from use by another web site than that of the web server.
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Abstract
A request is received from a client for a web page hosted by a web server. Responsive to this request, a persistent client state object having an identifier therein is returned to the client. When a request is received from a client for elements of the web page hosted by the web server, the client is first required to return the persistent client state object having the identifier therein before the requested web page element is sent to the client.
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Citations
19 Claims
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1. A method of verifying a right to use an element of a web page hosted by a web server, the method comprising the steps of:
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every time a request is made from a client for a web page hosted by a web server, storing an indicator that said client has requested the web page hosted by said web server; responsive to a request from a client for an element of said web page that is stored in a separate file from the web page and displayed as an embedded element of said web page, checking for said indicator that said client has requested said web page from said web server; and responding to the request from the client for said element of said web page hosted by the web server according to the result of said checking step, wherein the element of said web page is eliminated from use by another web site than that of the web server. - View Dependent Claims (2, 3, 4, 5, 6, 15, 16, 17, 18, 19)
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7. A method of verifying a right to use an element of a web page hosted by a web server, the method comprising the steps of:
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responsive to a request from a client for an element of a web page that is stored in a separate file from the web page and displayed as an embedded element of said web page, checking said request for an indicator that said request results from a client request for a web page hosted by an authorised web server, the indicator having been provided to the client by the authorised web server every time a request was made from the client for the web page hosted by the authorised web server; and responsive to the presence of such an indicator, responding to the request from the client with said element of a web page, wherein the element of said web page is eliminated from use by another web site than that of the web server. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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Specification