POST /upload HTTP/1.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Content-Length: 431
Content-Type: multipart/form-data; boundary=----WebKitFormBoundarykkJ0CDXe4jYnH95C

------WebKitFormBoundarykkJ0CDXe4jYnH95C
Content-Disposition: form-data; name="bar"; filename="bar"
Content-Type: application/octet-stream

bar
------WebKitFormBoundarykkJ0CDXe4jYnH95C
Content-Disposition: form-data; name="baz[你好]"; filename="baz.txt"
Content-Type: text/plain

baz
------WebKitFormBoundarykkJ0CDXe4jYnH95C
Content-Disposition: form-data; name="foo"

foo
------WebKitFormBoundarykkJ0CDXe4jYnH95C--