fix routing site matcher

ot_optimizer/Classes/Routing/SiteMatcher.php

@@ -40,7 +40,7 @@ class SiteMatcher extends \TYPO3\CMS\Core\Routing\SiteMatcher
             preg_match("/\w+\/(.*)/", $request->getUri()->getPath(), $m);
             $tail = $m[1] ?? "";
         } else {
-            $tail = $request->getUri()->getPath();
+            $tail = rtrim($request->getUri()->getPath(), '/');
         }
 
         $language = $site->getDefaultLanguage();