Merge pull request canjs#2115 from prashantsharmain/master

%root property is serialized when can.Map instance is shared between a component viewModel and a can.route

component/component.js

@@ -153,6 +153,13 @@ steal("can/util", "can/view/callbacks","can/view/elements.js","can/view/bindings
 								viewModel = new(can.Map.extend(scopeResult))(initialViewModelData);
 							}
 						}
+
+						var oldSerialize = viewModel.serialize;
+						viewModel.serialize = function () {
+							var result = oldSerialize.apply(this, arguments);
+							delete result["%root"];
+							return result;
+						};
 
 						return viewModel;
 					}, initialViewModelData));

component/component_test.js

@@ -1530,7 +1530,23 @@ steal("can-simple-dom", "can/util/vdom/build_fragment","can", "can/map/define",
 				passedProp: "value"
 			});
 		});
-
+
+		test("%root property should not be serialized inside prototype of can.Component constructor (#2080)", function () {
+			var viewModel = can.Map.extend({});
+
+			can.Component.extend({
+				tag: "foo",
+				viewModel: viewModel,
+				init: function () {
+					ok(!this.viewModel.serialize()['%root'], "serialized viewModel contains '%root' property");
+				}
+			});
+
+			var template = can.stache("<foo/>");
+
+			can.append(this.$fixture, template());
+		});
+
 		// PUT NEW TESTS ABOVE THIS LINE
 	}
 
@@ -1828,4 +1844,4 @@ steal("can-simple-dom", "can/util/vdom/build_fragment","can", "can/map/define",
 	});
 
 	// DONT PUT TESTS HERE!!!  Look up for where to put new tests.
-});
+});