Seek does not seem to support DocumentFragment

[lns0801]

I was looking for a lightweight selector engine, but seek seems to be the best alternative.
I am sorry that I can not find some element.

The code I have implemented is shown below.

var context = document.createDocumentFragment();
var wrapper= document.createElement('div');
wrapper.id = 'siblingTest';
wrapper.innerHTML= "<em id=\"siblingfirst\">1</em><em id=\"siblingnext\">2</em><em id=\"siblingthird\"><em id=\"siblingchild\"><em id=\"siblinggrandchild\"><em id=\"siblinggreatgrandchild\"></em></em></em></em><span id=\"siblingspan\"></span>";
context.appendChild( wrapper );
console.log( seek( "em:nth-child(2)", context ) );

When you insert the above code, the following value should be output to console.
[" </ em>"]
But seek returns an empty array.

I think it is an issue caused by DocumentFragment.
Please fix it.

Thank you.

[wonseop]

This is so true, thanks!
Let's have a look ASAP.

[dhjang]

I fixed this issue through #26