Functional browser gunzip

index.js

var binary_xhr = require('binary-xhr');
var zlib = require('zlib-browserify');

binary_xhr('data.gz', function(e, data){
  zlib.gunzip(new Uint8Array(data), function(e, result){
    console.log(e, result); // e: undefined, result: Buffer {0: 80, 1: 75, 2: 3, 3: 4, 4: 20...}
  });
});