Selector: Add a support comment

mgol · mgol · commit ca028f373606 · 2019-06-26T22:05:40.000+02:00
diff --git a/src/selector.js b/src/selector.js
@@ -558,6 +558,9 @@ setDocument = Sizzle.setDocument = function( node ) {
 		var adown = a.nodeType === 9 ? a.documentElement : a,
 			bup = b && b.parentNode;
 		return a === bup || !!( bup && bup.nodeType === 1 && (
+
+			// Support: IE 9 - 11+
+			// IE doesn't have `contains` on SVG.
 			adown.contains ?
 				adown.contains( bup ) :
 				a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
