diff --git a/src/Routing/ScopedRouteCollection.php b/src/Routing/ScopedRouteCollection.php
index 942dc0804ed..5a7641f0c69 100644
--- a/src/Routing/ScopedRouteCollection.php
+++ b/src/Routing/ScopedRouteCollection.php
@@ -219,6 +219,10 @@ public function get($name) {
  * @return array Array of mapped resources
  */
 	public function resource($name, $options = [], $callback = null) {
+		if (is_callable($options) && $callback === null) {
+			$callback = $options;
+			$options = [];
+		}
 		$options += array(
 			'connectOptions' => [],
 			'id' => static::ID . '|' . static::UUID
@@ -227,8 +231,8 @@ public function resource($name, $options = [], $callback = null) {
 		unset($options['connectOptions']);
 
 		$urlName = Inflector::underscore($name);
-		$ext = null;
 
+		$ext = null;
 		if (!empty($options['_ext'])) {
 			$ext = $options['_ext'];
 		}
@@ -251,7 +255,7 @@ public function resource($name, $options = [], $callback = null) {
 
 		if (is_callable($callback)) {
 			$idName = Inflector::singularize($urlName) . '_id';
-			$path = '/' . $urlName . '/:' . $idName;
+			$path = $this->_path . '/' . $urlName . '/:' . $idName;
 			Router::scope($path, $this->params(), $callback);
 		}
 	}
diff --git a/tests/TestCase/Routing/ScopedRouteCollectionTest.php b/tests/TestCase/Routing/ScopedRouteCollectionTest.php
index cd3e190e333..65e25f4bcd2 100644
--- a/tests/TestCase/Routing/ScopedRouteCollectionTest.php
+++ b/tests/TestCase/Routing/ScopedRouteCollectionTest.php
@@ -125,6 +125,8 @@ public function testConnectBasic() {
  */
 	public function testConnectExtensions() {
 		$routes = new ScopedRouteCollection('/l', [], ['json']);
+		$this->assertEquals(['json'], $routes->extensions());
+
 		$routes->connect('/:controller');
 		$route = $routes->routes()[0];
 
@@ -288,4 +290,62 @@ public function testMatch() {
 		$this->assertFalse($result, 'No matches');
 	}
 
+/**
+ * Test matching plugin routes.
+ *
+ * @return void
+ */
+	public function testMatchPlugin() {
+		$context = [
+			'_base' => '/',
+			'_scheme' => 'http',
+			'_host' => 'example.org',
+		];
+		$routes = new ScopedRouteCollection('/contacts', ['plugin' => 'Contacts']);
+		$routes->connect('/', ['controller' => 'Contacts']);
+
+		$result = $routes->match(
+			['plugin' => 'Contacts', 'controller' => 'Contacts', 'action' => 'index'],
+			$context
+		);
+		$this->assertFalse($result);
+
+		$result = $routes->match(['controller' => 'Contacts', 'action' => 'index'], $context);
+		$this->assertFalse($result);
+	}
+
+/**
+ * Test connecting resources.
+ *
+ * @return void
+ */
+	public function testResource() {
+		$routes = new ScopedRouteCollection('/api', ['prefix' => 'api']);
+		$routes->resource('Articles', ['_ext' => 'json']);
+
+		$all = $routes->routes();
+		$this->assertCount(6, $all);
+
+		$this->assertEquals('/api/articles', $all[0]->template);
+		$this->assertEquals('json', $all[0]->defaults['_ext']);
+		$this->assertEquals('Articles', $all[0]->defaults['controller']);
+	}
+
+/**
+ * Test nesting resources
+ *
+ * @return void
+ */
+	public function testResourceNested() {
+		$routes = new ScopedRouteCollection('/api', ['prefix' => 'api']);
+		$routes->resource('Articles', function($routes) {
+			$this->assertEquals('/api/articles/', $routes->path());
+			$this->assertEquals(['prefix' => 'api'], $routes->params());
+
+			$routes->resource('Comments');
+			$route = $routes->routes()[0];
+			$this->assertEquals('/api/articles/:article_id/comments', $route->template);
+		});
+	}
+
 }