node.js - How to send a mongodb BinData object to the response in meteor? -

i'm wondering how send mongodb bindata object nodejs response in meteor. route looks this:

router.route('/profiles/:owner/pictures/:_id', function() {   var file = files.findone(this.params._id);   this.response.end(file.data); }, {   name: 'profile.image',   where: 'server' }); 

when try load url expect return image nodejs error:

typeerror: argument must string @ getsize 

in name key you're looking string instead of argument.