upload filename with double quote failure

[motto]

as for nginx backend for debug purpose I use python-tornado script, which
will just give back params, which nginx pass to it.
so here it is:
upload under Chrome:
{u'upfile.path': ['/usr/local/apps/Opus/temp/upload/6/0009495446'],
u'upfile.size': ['51'], u'upfile.name': ['test%22try.txt'], u'note': [''],
u'upfile.md5': ['5a089ad5ea93048b0d492d53626bf76b'], u'upfile.content_type':
['text/plain']}
upload under Firefox:
{u'note': [''], u'upfile':
['erthtyjt\nrthy\ntrh\nrt\nh\nrt\nh\nrt\nh\nrth\nr\nth\nr\nth\n\nt\n\n']}

Chrome does character encoding, but Firefox - just backspace double quote
sign.

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,238613,238618#msg-238618