Make it work with node v6.0.0

[jackhsu978]

I recently upgraded node to v6, but this module is broken after the upgrade. The error message is:

TypeError: parsedQuery.hasOwnProperty is not a function

To reproduce the problem, try evaluate the following with Node v6:

require('url').parse('', true).query.hasOwnProperty('test')

It turns out that when query is an empty string, the query object returned from url.parse has no method hasOwnProperty. This patch fixes the problem.

[thoop]

Looks like no matter what, it evaluates to undefined:

url.parse('http://www.example.com?test=true', true).query.hasOwnProperty

And it looks like they changed the querystring module to call Object.create(null) to return an "empty" object instead of {}

I don't think _escaped_fragment_ would ever be on a parent prototype object so I think everything would be ok if we just shortened it to:

if(parsedQuery && parsedQuery['_escaped_fragment_']) isRequestingPrerenderedPage = true;

What do you think?

[jackhsu978]

@thoop yes, I agree. That's actually better!

[thoop]

Want to send that in a new pull request and I'll merge it? Thanks for finding that!

[jackhsu978]

Just sent another pull request 😄

[jackhsu978]

See pull request #104