[BUGFIX] Trim slashed sourceUrl as well as the redirect uri

Classes/Middleware/RedirectResolver.php

@@ -137,7 +137,7 @@ class RedirectResolver implements MiddlewareInterface {
 					} else {
 						$sourceUrl = new Uri($redirect['source_url']);
 						$uri = $uri->withPath(\trim($uri->getPath(), '/'));
-						$sourceUrl = $sourceUrl->withPath(\trim($sourceUrl->getPath()));
+						$sourceUrl = $sourceUrl->withPath(\trim($sourceUrl->getPath(), '/'));
 						if ($sourceUrl->getHost() === '') {
 							$uri = $uri->withHost('')->withScheme(NULL);
 						}