nanto/index.html
Created Nov 9, 2014

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        <!DOCTYPE html>
      
        <html>
      
        <head>
      
        <meta charset="utf-8">
      
        <title>host of cloned 'a' element</title>
      
        </head>
      
        <body>
      
        <script>
      
        var a = document.createElement('a');
      
        a.href = '';
      
        a = a.cloneNode(false);
      
        document.write('<p>a.host: ' + a.host + '<\/p>');
      
        document.write('<p>location.host: ' + location.host + '<\/p>');
      
        </script>
      
        </body>
      
        </html>

Owner Author

nanto commented Nov 9, 2014

Open console and run the following code in any page.

var iframe = document.createElement('iframe');
iframe.src = 'http://bl.ocks.org/nanto/raw/695cfa663c066077e2ea/';
document.body.appendChild(iframe);

We expect a.host to be 'bl.ocks.org' but in IE it becomes a host of parent document.

Owner Author

nanto commented Nov 9, 2014

This behavior of IE was referred to in http://d.hatena.ne.jp/monjudoh/20110207/1297071182 (written in Japanese).

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