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Method for prefetching external resources to embedded objects in a markup language data stream

  • US 6,553,393 B1
  • Filed: 04/26/1999
  • Issued: 04/22/2003
  • Est. Priority Date: 04/26/1999
  • Status: Expired due to Fees
First Claim
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1. A method of outputting a document, the method comprising:

  • retrieving the document at a client from a server, wherein the document comprises a markup language data stream having a plurality of references to external resources required by the document, wherein the markup language data stream comprises a list of external resources that is positioned in the data stream before all of the references to external resources prior to receipt of the markup language data stream at the client, wherein each external resource in the list of external resources is prioritized according to a priority scheme, and wherein the priority scheme allows for prioritization based on resource type;

    parsing the markup language data stream for the list of external resources;

    determining whether prefetching of external resources is enabled prior to prefetching any external resources in the list of external resources; and

    if prefetching of external resources is enabled, selectively prefetching at least one external resource as the document is output by the rendering engine.

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