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POCommunicating between websites (using Javascript or ?)
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copied!<p>Here's my problem - I'd like to communicate between two websites and I'm looking for a clean solution. The current solution uses Javascript but there are nasty workarounds because of (understandable) cross-site scripting restrictions.</p> <p>At the moment, <strong>website A</strong> opens a modal window containing <strong>website B</strong> using a <a href="http://jquery.com/" rel="nofollow noreferrer">jQuery</a> plug-in called <a href="http://dev.iceburg.net/jquery/jqModal/" rel="nofollow noreferrer">jqModal</a>. <strong>Website B</strong> does some work and returns some results to <strong>website A</strong>. To return that information we have to work around cross-site scripting restrictions - <strong>website B</strong> creates an iframe that refers to a page on <strong>website A</strong> and includes *fragment identifiers" containing the information to be returned. The iframe is polled by <strong>website A</strong> to detect the returned information. It's a <a href="http://tagneto.blogspot.com/2006/06/cross-domain-frame-communication-with.html" rel="nofollow noreferrer">common technique</a> but it's hacky.</p> <p>There are variations such as <a href="http://www.julienlecomte.net/blog/2007/11/31/" rel="nofollow noreferrer">CrossSite</a> and I could perhaps use an HTTP POST from <strong>website B</strong> to <strong>website A</strong> but I'm trying to avoid page refreshes.</p> <p>Does anyone have any alternatives?</p> <p>EDIT: I'd like to avoid having to save state on <strong>website B</strong>.</p>

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