unify url handling for routes and redirect

src/Response/Redirect.php

@@ -19,7 +19,7 @@ class Redirect implements IRedirect
         if (preg_match('/^http(s)?/', $this->target) === 1) {
             $link = $this->target;
         } else {
-            $link = \Container::$request->getBase() . '/' . $this->target;
+            $link = \Container::$request->getBase() . $this->target;
         }
 
         return $link;

src/Routing/Route.php

@@ -53,7 +53,7 @@ class Route
 
         $query = count($queryParams) > 0 ? '?' . http_build_query($queryParams) : '';
 
-        return implode('/', $link) . $query;
+        return '/' . implode('/', $link) . $query;
     }
 
     public function testAgainst(array $path): ?array

src/Routing/RouteCollection.php

@@ -41,9 +41,10 @@ class RouteCollection
         return $this->routes[$id];
     }
 
-    public function match(string $method, array $uri): ?array
+    public function match(string $method, string $uri): ?array
     {
-        $groupNumber = count($uri);
+        $path = $uri === '/' ? [] : explode('/', ltrim($uri, '/'));
+        $groupNumber = count($path);
 
         // response to HEAD request with the GET content
         if ($method === 'head') {
@@ -55,7 +56,7 @@ class RouteCollection
         }
 
         foreach ($this->searchTable[$method][$groupNumber] as $route) {
-            if (($parameters = $route->testAgainst($uri)) !== null) {
+            if (($parameters = $route->testAgainst($path)) !== null) {
                 return [$route, $parameters];
             }
         }