diff --git a/.phpstorm.meta.php b/.phpstorm.meta.php
deleted file mode 100644
index cd9d3a75..00000000
--- a/.phpstorm.meta.php
+++ /dev/null
@@ -1,8 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace PHPSTORM_META;
-
-expectedArguments(\Nette\Routing\RouteList::add(), 1, \Nette\Routing\RouteList::ONE_WAY);
-expectedArguments(\Nette\Routing\RouteList::addRoute(), 2, \Nette\Routing\RouteList::ONE_WAY);
diff --git a/composer.json b/composer.json
index e650c665..97dddd28 100644
--- a/composer.json
+++ b/composer.json
@@ -34,7 +34,7 @@
 	},
 	"extra": {
 		"branch-alias": {
-			"dev-master": "3.1-dev"
+			"dev-master": "4.0-dev"
 		}
 	}
 }
diff --git a/readme.md b/readme.md
index 931d2628..469d4fb5 100644
--- a/readme.md
+++ b/readme.md
@@ -333,14 +333,14 @@ Global filters give you the ability to adjust the behavior of the route in absol
 If a parameter has a custom filter defined and a global filter exists at the same time, custom `FILTER_IN` is executed before the global and vice versa global `FILTER_OUT` is executed before the custom. Thus, inside the global filter are the values of the parameters `controller` resp. `action` written in PascalCase resp. camelCase style.
 
 
-ONE_WAY flag
+OneWay flag
 ------------
 
-One-way routes are used to preserve the functionality of old URLs that the application no longer generates but still accepts. We flag them with `ONE_WAY`:
+One-way routes are used to preserve the functionality of old URLs that the application no longer generates but still accepts. We flag them with `oneWay`:
 
 ```php
 // old URL /product-info?id=123
-$router->addRoute('product-info', [...], $router::ONE_WAY);
+$router->addRoute('product-info', [...], oneWay: true);
 // new URL /product/123
 $router->addRoute('product/<id>', [...]);
 ```
@@ -450,7 +450,7 @@ SEO and Canonization
 
 The framework increases SEO (search engine optimization) by preventing duplication of content at different URLs. If multiple addresses link to a same destination, eg `/index` and `/index.html`, the framework determines the first one as primary (canonical) and redirects the others to it using HTTP code 301. Thanks to this, search engines will not index pages twice and do not break their page rank. .
 
-This process is called canonization. The canonical URL is the one generated by the router, i.e. by the first matching route in the [collection ](#route-collection) without the ONE_WAY flag. Therefore, in the collection, we list **primary routes first**.
+This process is called canonization. The canonical URL is the one generated by the router, i.e. by the first matching route in the [collection ](#route-collection) without the OneWay flag. Therefore, in the collection, we list **primary routes first**.
 
 Canonization is performed by the controller, more in the chapter [canonization ](controllers#Canonization).
 
diff --git a/src/Routing/Route.php b/src/Routing/Route.php
index a36f2dc4..4937930a 100644
--- a/src/Routing/Route.php
+++ b/src/Routing/Route.php
@@ -167,7 +167,7 @@ public function match(Nette\Http\IRequest $httpRequest): ?array
 				? [$host]
 				: array_reverse(explode('.', $host));
 			$re = strtr($re, [
-				'/%basePath%/' => preg_quote($url->getBasePath(), '#'),
+                '/%basePath%/' => preg_quote($url->getBasePath() . '/', '#'),
 				'%tld%' => preg_quote($parts[0], '#'),
 				'%domain%' => preg_quote(isset($parts[1]) ? "$parts[1].$parts[0]" : $parts[0], '#'),
 				'%sld%' => preg_quote($parts[1] ?? '', '#'),
@@ -176,11 +176,11 @@ public function match(Nette\Http\IRequest $httpRequest): ?array
 
 		} elseif ($this->type === self::Relative) {
 			$basePath = $url->getBasePath();
-			if (strncmp($url->getPath(), $basePath, strlen($basePath)) !== 0) {
+            if (strncmp($url->getPath(), $basePath.'/', strlen($basePath.'/')) !== 0) {
 				return null;
 			}
 
-			$path = substr($url->getPath(), strlen($basePath));
+            $path = substr($url->getPath(), strlen($basePath.'/'));
 
 		} else {
 			$path = $url->getPath();
@@ -262,7 +262,7 @@ public function constructUrl(array $params, Nette\Http\UrlScript $refUrl): ?stri
 
 		// absolutize
 		if ($this->type === self::Relative) {
-			$url = (($tmp = $refUrl->getAuthority()) ? "//$tmp" : '') . $refUrl->getBasePath() . $url;
+            $url = (($tmp = $refUrl->getAuthority()) ? "//$tmp" : '') . $refUrl->getBasePath() . '/' . $url;
 
 		} elseif ($this->type === self::Path) {
 			$url = (($tmp = $refUrl->getAuthority()) ? "//$tmp" : '') . $url;
@@ -272,12 +272,13 @@ public function constructUrl(array $params, Nette\Http\UrlScript $refUrl): ?stri
 			$parts = ip2long($host)
 				? [$host]
 				: array_reverse(explode('.', $host));
+			$port = $refUrl->getDefaultPort() === ($tmp = $refUrl->getPort()) ? '' : ':' . $tmp;
 			$url = strtr($url, [
-				'/%basePath%/' => $refUrl->getBasePath(),
-				'%tld%' => $parts[0],
-				'%domain%' => isset($parts[1]) ? "$parts[1].$parts[0]" : $parts[0],
+                '/%basePath%/' => $refUrl->getBasePath() . '/',
+				'%tld%' => $parts[0] . $port,
+				'%domain%' => (isset($parts[1]) ? "$parts[1].$parts[0]" : $parts[0]) . $port,
 				'%sld%' => $parts[1] ?? '',
-				'%host%' => $host,
+				'%host%' => $host . $port,
 			]);
 		}
 
@@ -309,6 +310,14 @@ private function preprocessParams(array &$params): bool
 			$fixity = $meta[self::Fixity] ?? null;
 
 			if (!isset($params[$name])) {
+				if ($fixity === self::Constant) {
+					if ($meta[self::Value] === null) {
+						continue;
+					}
+
+					return false; // wrong parameter value
+				}
+
 				continue; // retains null values
 			}
 
@@ -319,7 +328,8 @@ private function preprocessParams(array &$params): bool
 			}
 
 			if ($fixity !== null) {
-				if ($params[$name] === $meta[self::Value]) { // remove default values; null values are retain
+				if ($params[$name] == $meta[self::Value]) { // default value may be object, intentionally ==
+					// remove default values; null values are retain
 					unset($params[$name]);
 					continue;
 
diff --git a/src/Routing/RouteList.php b/src/Routing/RouteList.php
index 41561757..179fd8a2 100644
--- a/src/Routing/RouteList.php
+++ b/src/Routing/RouteList.php
@@ -37,9 +37,8 @@ public function __construct()
 
 	/**
 	 * Maps HTTP request to an array.
-	 * @final
 	 */
-	public function match(Nette\Http\IRequest $httpRequest): ?array
+	final public function match(Nette\Http\IRequest $httpRequest): ?array
 	{
 		if ($httpRequest = $this->prepareRequest($httpRequest)) {
 			foreach ($this->list as [$router]) {
@@ -68,7 +67,7 @@ protected function prepareRequest(Nette\Http\IRequest $httpRequest): ?Nette\Http
 			$url = $httpRequest->getUrl();
 			$relativePath = $url->getRelativePath();
 			if (strncmp($relativePath, $this->path, strlen($this->path)) === 0) {
-				$url = $url->withPath($url->getPath(), $url->getBasePath() . $this->path);
+                $url = $url->withPath($url->getPath(), $url->getBasePath() . '/' . $this->path);
 			} elseif ($relativePath . '/' === $this->path) {
 				$url = $url->withPath($url->getPath() . '/');
 			} else {
@@ -105,7 +104,7 @@ public function constructUrl(array $params, Nette\Http\UrlScript $refUrl): ?stri
 
 		if ($this->path) {
 			if (!isset($this->refUrlCache[$refUrl])) {
-				$this->refUrlCache[$refUrl] = $refUrl->withPath($refUrl->getBasePath() . $this->path);
+                $this->refUrlCache[$refUrl] = $refUrl->withPath($refUrl->getBasePath() . '/' . $this->path);
 			}
 
 			$refUrl = $this->refUrlCache[$refUrl];
@@ -187,7 +186,7 @@ public function warmupCache(): void
 	/**
 	 * Adds a router.
 	 */
-	public function add(Router $router, int $oneWay = 0): static
+	public function add(Router $router, bool $oneWay = false): static
 	{
 		$this->list[] = [$router, $oneWay];
 		$this->ranks = null;
@@ -198,7 +197,7 @@ public function add(Router $router, int $oneWay = 0): static
 	/**
 	 * Prepends a router.
 	 */
-	public function prepend(Router $router, int $oneWay = 0): void
+	public function prepend(Router $router, bool $oneWay = false): void
 	{
 		array_splice($this->list, 0, 0, [[$router, $oneWay]]);
 		$this->ranks = null;
@@ -220,12 +219,7 @@ protected function modify(int $index, ?Router $router): void
 	}
 
 
-	/**
-	 * @param  string  $mask  e.g. '<presenter>/<action>/<id \d{1,3}>'
-	 * @param  array  $metadata  default values or metadata
-	 * @return static
-	 */
-	public function addRoute(string $mask, array $metadata = [], int $oneWay = 0)
+	public function addRoute(string $mask, array $metadata = [], bool $oneWay = false): static
 	{
 		$this->add(new Route($mask, $metadata), $oneWay);
 		return $this;
@@ -273,11 +267,11 @@ public function getRouters(): array
 
 
 	/**
-	 * @return int[]
+	 * @return bool[][]
 	 */
 	public function getFlags(): array
 	{
-		return array_column($this->list, 1);
+		return array_map(fn($info) => ['oneWay' => (bool) $info[1]], $this->list);
 	}
 
 
diff --git a/src/Routing/Router.php b/src/Routing/Router.php
index 2ea81a95..61a2a04f 100644
--- a/src/Routing/Router.php
+++ b/src/Routing/Router.php
@@ -17,8 +17,8 @@
  */
 interface Router
 {
-	/** for back compatibility */
-	public const ONE_WAY = 0b0001;
+	/** @deprecated */
+	public const ONE_WAY = true;
 
 	/**
 	 * Maps HTTP request to an array.
diff --git a/src/Routing/SimpleRouter.php b/src/Routing/SimpleRouter.php
index 57958a77..0901121d 100644
--- a/src/Routing/SimpleRouter.php
+++ b/src/Routing/SimpleRouter.php
@@ -44,9 +44,7 @@ public function constructUrl(array $params, Nette\Http\UrlScript $refUrl): ?stri
 	{
 		// remove default values; null values are retain
 		foreach ($this->defaults as $key => $value) {
-			if (isset($params[$key])
-				&& (is_scalar($params[$key]) ? (string) $params[$key] : $params[$key]) === (is_scalar($value) ? (string) $value : $value)
-			) {
+			if (isset($params[$key]) && $params[$key] == $value) { // default value may be object, intentionally ==
 				unset($params[$key]);
 			}
 		}
diff --git a/tests/Route/fixedParameter.phpt b/tests/Route/fixedParameter.phpt
index 4bc1b37b..705f396a 100644
--- a/tests/Route/fixedParameter.phpt
+++ b/tests/Route/fixedParameter.phpt
@@ -21,10 +21,7 @@ testRouteIn($route, '/?const=foo', ['const' => 'hello', 'test' => 'testvalue'],
 
 testRouteIn($route, '/?const=hello', ['const' => 'hello', 'test' => 'testvalue'], '/?test=testvalue');
 
-Assert::same(
-	'http://example.com/',
-	testRouteOut($route, [])
-);
+Assert::null(testRouteOut($route, []));
 
 Assert::null(testRouteOut($route, ['const' => 'foo']));
 
@@ -33,7 +30,4 @@ Assert::same(
 	testRouteOut($route, ['const' => 'hello']),
 );
 
-Assert::same(
-	'http://example.com/',
-	testRouteOut($route, ['const' => null])
-);
+Assert::null(testRouteOut($route, ['const' => null]));
diff --git a/tests/Route/objectParameter.phpt b/tests/Route/objectParameter.phpt
new file mode 100644
index 00000000..c24298d8
--- /dev/null
+++ b/tests/Route/objectParameter.phpt
@@ -0,0 +1,32 @@
+<?php
+
+/**
+ * Test: Nette\Routing\Route object parameter default value.
+ */
+
+declare(strict_types=1);
+
+use Nette\Routing\Route;
+use Tester\Assert;
+
+
+require __DIR__ . '/../bootstrap.php';
+
+
+test('', function () {
+	$object = new stdClass;
+
+	$route = new Route('', [
+		'param' => $object,
+	]);
+
+	Assert::same(
+		'http://example.com/',
+		testRouteOut($route, ['param' => $object]),
+	);
+
+	Assert::same(
+		'http://example.com/',
+		testRouteOut($route, ['param' => new stdClass]),
+	);
+});
diff --git a/tests/Route/optional.autooptional3.phpt b/tests/Route/optional.autooptional3.phpt
index 41caeac8..80db780d 100644
--- a/tests/Route/optional.autooptional3.phpt
+++ b/tests/Route/optional.autooptional3.phpt
@@ -13,9 +13,7 @@ use Tester\Assert;
 require __DIR__ . '/../bootstrap.php';
 
 
-$route = new Route('<presenter>/<default=123>/<required>', [
-	'action' => 'default',
-]);
+$route = new Route('<presenter>/<default=123>/<required>', []);
 
 testRouteIn($route, '/presenter/');
 testRouteIn($route, '/presenter/abc');
@@ -24,7 +22,6 @@ testRouteIn($route, '/presenter/abc/');
 testRouteIn($route, '/presenter/abc/xyy', [
 	'presenter' => 'presenter',
 	'default' => 'abc',
-	'action' => 'default',
 	'test' => 'testvalue',
 	'required' => 'xyy',
 ], '/presenter/abc/xyy?test=testvalue');
diff --git a/tests/Route/ports.phpt b/tests/Route/ports.phpt
new file mode 100644
index 00000000..c13f9413
--- /dev/null
+++ b/tests/Route/ports.phpt
@@ -0,0 +1,29 @@
+<?php
+
+/**
+ * Test: Nette\Routing\Route ports
+ */
+
+declare(strict_types=1);
+
+use Nette\Http\UrlScript;
+use Nette\Routing\Route;
+use Tester\Assert;
+
+
+require __DIR__ . '/../bootstrap.php';
+
+
+$route = new Route('//%domain%');
+
+$url = $route->constructUrl(
+	[],
+	new UrlScript('https://example.org:8000'),
+);
+Assert::same('https://example.org:8000', $url);
+
+$url = $route->constructUrl(
+	[],
+	new UrlScript('https://localhost:8000'),
+);
+Assert::same('https://localhost:8000', $url);
diff --git a/tests/Route/scalarParams.phpt b/tests/Route/scalarParams.phpt
index 4f618ecd..0cff8445 100644
--- a/tests/Route/scalarParams.phpt
+++ b/tests/Route/scalarParams.phpt
@@ -245,5 +245,8 @@ test('', function () {
 		testRouteOut($route, ['presenter' => 'homepage', 'param' => null]),
 	);
 
-	Assert::null(testRouteOut($route, ['presenter' => 'homepage', 'param' => '']));
+	Assert::same(
+		'http://example.com/homepage/',
+		testRouteOut($route, ['presenter' => 'homepage', 'param' => '']),
+	);
 });
diff --git a/tests/RouteList/addRoute.phpt b/tests/RouteList/addRoute.phpt
index e3b63d94..f44e2c37 100644
--- a/tests/RouteList/addRoute.phpt
+++ b/tests/RouteList/addRoute.phpt
@@ -9,8 +9,8 @@ require __DIR__ . '/../bootstrap.php';
 
 
 $list = new RouteList;
-$list->addRoute('foo', ['route' => 'foo'], RouteList::ONE_WAY);
-$list->addRoute('bar', ['route' => 'bar'], RouteList::ONE_WAY);
+$list->addRoute('foo', ['route' => 'foo'], oneWay: true);
+$list->addRoute('bar', ['route' => 'bar'], oneWay: true);
 $list->addRoute('hello', ['route' => 'hello']);
 
 
diff --git a/tests/RouteList/cache.phpt b/tests/RouteList/cache.phpt
index 1b5ef75f..a0f618e6 100644
--- a/tests/RouteList/cache.phpt
+++ b/tests/RouteList/cache.phpt
@@ -14,7 +14,7 @@ $list = new RouteList;
 $list->add(new Route('bar', ['presenter' => 'bar']));
 $list->add(new Route('<foo>', ['presenter' => 'foo']));
 $list->add(new Route('<presenter>/<action>', ['presenter' => 'xxx']));
-$list->add(new Route('oneway'), $list::ONE_WAY);
+$list->add(new Route('oneway'), oneWay: true);
 
 [$r1, $r2, $r3, $r4] = $list->getRouters();
 
diff --git a/tests/RouteList/oneWay.phpt b/tests/RouteList/oneWay.phpt
index 8c824e5f..88084a07 100644
--- a/tests/RouteList/oneWay.phpt
+++ b/tests/RouteList/oneWay.phpt
@@ -11,11 +11,11 @@ require __DIR__ . '/../bootstrap.php';
 
 
 $list = new RouteList;
-$list->add(new Route('foo', ['route' => 'foo']), RouteList::ONE_WAY);
-$list->addRoute('bar', ['route' => 'bar'], RouteList::ONE_WAY);
+$list->add(new Route('foo', ['route' => 'foo']), oneWay: true);
+$list->addRoute('bar', ['route' => 'bar'], oneWay: true);
 $list->add(new Route('hello', ['route' => 'hello']));
 
-Assert::same([RouteList::ONE_WAY, RouteList::ONE_WAY, 0], $list->getFlags());
+Assert::same([['oneWay' => true], ['oneWay' => true], ['oneWay' => false]], $list->getFlags());
 
 testRouteIn($list, '/foo', ['route' => 'foo', 'test' => 'testvalue']);
 testRouteIn($list, '/bar', ['route' => 'bar', 'test' => 'testvalue']);