errors whilst trying to browserify

gistfile1.js

/*  *  *  *  *  *  *  *  *  *

here is the file, i'm trying to browserify, called dom2json.js —

*  *  *  *  *  *  *  *  *  */

var fs = require('fs');
var parse = require('jsonml').parse;

var jsonML = parse(fs.readFileSync('/home/chronos/user/Downloads/code/say_media_quiz/dom2json.html'));

if(null === jsonML) {
  throw new Error("Invalid DOM");
} else {
  document.getElementById("final-result").innerHTML = JSON.stringify(jsonML);
  console.log(JSON.stringify(jsonML));
}

/*  *  *  *  *  *  *  *  *  *

when i attempt to browserify it on the command line, with —

$ browserify dom2json.js > dom2json-bundle.js

i get the following errors —

SyntaxError: Line 2: Unexpected token ILLEGAL while parsing /home/chronos/user/Downloads/code/say_media_quiz/node_modules/jsonml/node_modules/node-expat/build/Release/node_expat.node while parsing file: /home/chronos/user/Downloads/code/say_media_quiz/node_modules/jsonml/node_modules/node-expat/build/Release/node_expat.node
    at Stream.end (/usr/local/.nvm/v0.10.36/lib/node_modules/browserify/node_modules/insert-module-globals/index.js:73:21)
    at _end (/usr/local/.nvm/v0.10.36/lib/node_modules/browserify/node_modules/insert-module-globals/node_modules/through/index.js:65:9)
    at Stream.stream.end (/usr/local/.nvm/v0.10.36/lib/node_modules/browserify/node_modules/insert-module-globals/node_modules/through/index.js:74:5)
    at Transform.onend (/usr/local/.nvm/v0.10.36/lib/node_modules/browserify/node_modules/module-deps/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:523:10)
    at Transform.g (events.js:180:16)
    at Transform.emit (events.js:117:20)
    at /usr/local/.nvm/v0.10.36/lib/node_modules/browserify/node_modules/module-deps/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:965:16
    at process._tickCallback (node.js:442:13)


i don't understand what's going on. browserify was working fine from the command line before with the 'html2jsonml' module, but since i've been trying to use jsonml, i get the above errors. any help is appreciate. thank you.

*  *  *  *  *  *  *  *  *  */