Today I got a issue that window.location.origin returns undefined in IE 9 .
But we can fix this issue with following code:
if (!window.location.origin) { window.location.origin = window.location.protocol + "//" + window.location.hostname + (window.location.port ? ‘:‘ + window.location.port: ‘‘); }
and now the window.location.origin will return what we expect
fixed window.location.origin useless in IE
原文：http://www.cnblogs.com/deryck/p/4506937.html