Imported From: http://groups.google.com/group/in-portal-bugs/browse_thread/thread/c27cb83b90e3c050#
When you are trying to upload a file in Internet Explorer, then you'll get
alert message with such text:
*Error [-200]: 302*
*Occurred on file file_test.jpg*
Everything works, when you try to repeat upload attempt.
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Best Regards,