nodejs/express and binary data in POST

I'm trying to send binary data to an express app. It works fine, as long as my values are smaller than 0x80. If a single value is 0x80 or greater, it messes up the whole buffer. Express Handler: ``` binary = require('binary'); exports.api = function(req, res){ var body = req.body.name; var buf = new Buffer(body,'binary'); console.log('body',req.body); console.log('req body len', body.length); console.log('buf len', buf.length); var g = binary.parse(buf) .word16bu('a') // unsigned 16-bit big-endian value .word16bu('b').vars console.log('g.a', g.a); console.log('g.b', g.b); res.send("respond with a resource"); }; ``` Python client (Content-Type: application/x-www-form-urlencoded): ``` import requests from struct import pack # send two unsigned shorts (16-bits each). requests.post('http://localhost:3000/api', data={'name':pack('!HH',1,2)}) ``` Express output when data = 1,2. This is what I'd expect. ``` body { name: '\u0000\u0001\u0000\u0002' } req body len 4 buf len 4 g.a 1 g.b 2 POST /api 200 1ms - 23b ``` Express output when data = 1,0xFF. It's interesting to note that 9520 is actually 0x25 0x30 in hex, which corresponds to "%0" in ASCII. Yes, it appears to be parsing the '%00%01...' string. I wish I knew how to prevent this!!! ``` body { name: '%00%01%00%FF' } req body len 12 buf len 12 g.a 9520 g.b 12325 POST /api 200 2ms - 23b ```