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INTER-FRAME MESSAGING BETWEEN DIFFERENT DOMAINS

  • US 20090328063A1
  • Filed: 06/27/2008
  • Published: 12/31/2009
  • Est. Priority Date: 06/27/2008
  • Status: Active Grant
First Claim
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1. In a system comprising a parent web page which is hosted in a parent domain, a child web page which is hosted in a different child domain, and a client computing device comprising a web browser, wherein the parent web page embeds hypertext markup language (HTML) content from the child web page, a computer-implemented process for cross-domain communication between the parent web page and the child web page, comprising process actions of:

  • upon downloading the parent web page into the browser, constructing an IFM-frame object within the parent web page, wherein the IFM-frame object comprises a parent instantiation of a channel-control object;

    upon downloading the child web page into the browser, constructing an IFM-channel object within the browser, wherein the IFM-channel object comprises a child instantiation of the channel-control object;

    establishing an IFM-channel connection between the parent instantiation of the channel-control object and the child instantiation of the channel-control object; and

    using the established IFM-channel connection to bidirectionally communicate text-based messages directly between the parent web page and the child web page, wherein said messages comprise commands and HTML content, and the cross-domain communication takes place completely within the web browser.

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