Created
February 2, 2012 03:26
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Firefox 10 Crossdomain isArray bug
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| # /etc/hosts | |
| 127.0.0.1 example.com | |
| 127.0.0.1 api.example.com |
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| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> | |
| <html> | |
| <body> | |
| <script> | |
| document.domain = "example.com" | |
| </script> | |
| <!-- Subdomains only. Everything works as expected if we use src="/xdreceiver.html" --> | |
| <iframe name="xd" src="http://api.example.com/xdreceiver.html"></iframe> | |
| <script> | |
| // we have to wait for the iframe to be loaded on the page | |
| setTimeout( function() { | |
| //both alert false | |
| alert(Array.isArray(window.xd.arr)) | |
| alert(Array.isArray(window.xd.JSON.parse("[]"))) | |
| Array.isArray = function(obj) { | |
| return Object.prototype.toString.call(obj) === "[object Array]"; | |
| } | |
| //both alert true | |
| alert(Array.isArray(window.xd.arr)) | |
| alert(Array.isArray(window.xd.JSON.parse("[]"))) | |
| }, 200) | |
| </script> | |
| </body> | |
| </html> |
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| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> | |
| <html> | |
| <head> | |
| </head> | |
| <body> | |
| <script> | |
| document.domain = "example.com" | |
| window.arr = [] | |
| </script> | |
| </body> | |
| </html> |
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