Query selector: removed support for document fragments

Since it’s not well supported, many required methods like `getElementById` or `getElementsByTagName` are not widely supported.

Author: fabiospampinato

src/core/find.ts

@@ -3,7 +3,7 @@
 
 function find ( selector: string, context: Context = doc ) {
 
-  return context !== doc && context.nodeType !== 1 && context.nodeType !== 9 && context.nodeType !== 11
+  return context !== doc && context.nodeType !== 1 && context.nodeType !== 9
            ? []
            : classRe.test ( selector )
              ? context.getElementsByClassName ( selector.slice ( 1 ) )

test/modules/core.js

@@ -191,17 +191,6 @@ describe ( 'Core', { beforeEach: getFixtureInit ( fixture ) }, function ( it ) {
 
     });
 
-    it ( 'supports a document fragment', function ( t ) {
-
-      var doc = document.createDocumentFragment (),
-          ele = $('<p id="foo">')[0];
-
-      $(doc).append ( ele );
-
-      t.is ( $('#foo', doc)[0], ele );
-
-    });
-
   });
 
 });