javascript - How to share jQuery .data() data through iframe's? -

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i'm trying share jquery data 1 or more iframe'd html pages parent html document. need inter-iframe communication , if possible (highly desireble) share/exchange .data() i.e. $.cache of both jquery objects (in parent , child iframe).

someting similar this:

parent html:

<!doctype html> <html>     <head>          <title >iframe-data</title>          <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js" ></script>           <script type="text/javascript" >              jquery(function($){                 var testdata = 'hello world #div1';                 $('#div1').data('test',testdata);                 var newtestdata = $('.div2').closest('.div1').data('test');                 $('#div2').append( 'parent window: "' + testdata + '" === "' + newtestdata + '" => ' + (testdata === newtestdata) );             }); // jquery()          </script>     </head>     <body>          <div id="div1" class="div1" >             <div id="div2" class="div2" >             </div>             <iframe src="iframe-data2.html" ></iframe>         </div>      </body> </html>

iframe html:

<!doctype html> <html>     <head>          <title >iframe-data2</title>          <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js" ></script>           <script type="text/javascript" >              jquery(function($){                 var testdata = 'hello world #div1';                 var $body = $(window.top.document.body);                 var $div1 = $body.find('#div1');                 var outsidetestdata = $body.find('#div1').data('test');                 var $div2 = $('#div2');                 $div2.append( 'outside test data: "' + testdata + '" === "' + outsidetestdata + '" => ' + (testdata === outsidetestdata) );             }); // jquery()          </script>     </head>     <body style="background-color: silver">          <div id="div1" class="div1" >             <div id="div2" class="div2" >             </div>         </div>      </body> </html>

jquery object created inside anonymous function , uses closure accessing global (global other jquery functions) array inside functions. so, result: jquery in iframe , jquery in top window have different data array. if need top level data, use window.top.jquery('#div1').data('test1') (please note default context jquery document, created, using "top level jquery" don't need specify top level document.


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