a question about the value returned from controlor FileUpLoad

It's my first post, forgive me if I did something wrong, thanks.

my question is about the value returned from the controlor FileUpLoad by using IE8.0.

the problem is when I try to alert the value that get from FileUpLoad by using javascrpt, always I find the paths are all start with the string "fakepath".

for example:

the browse path I choosed is C:\Test\Test.rar, but the returned value must be C:\fakepath\Test.rar.

and this problem only appeared in IE8.0.

how can I resolve it?

thank you very much for your early reply.
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