Merge pull request #582 from skipperbent/v4-group-prefix-bug

Fixed issue causing group prefix to trigger on paths without "/" (issue #573 - thanks @Venloress)

Author: skipperbent

src/Pecee/SimpleRouter/Route/RouteGroup.php

@@ -78,7 +78,7 @@ public function matchRoute(string $url, Request $request): bool
         }
 
         /* Skip if prefix doesn't match */
-        if ($this->prefix !== null && stripos($url, $parsedPrefix) === false) {
+        if ($this->prefix !== null && stripos($url, rtrim($parsedPrefix, '/') . '/') === false) {
             return false;
         }