diff --git a/e2e-testing/src/Http/PhpRouter.php b/e2e-testing/src/Http/PhpRouter.php
index 7527814..1ec886c 100644
--- a/e2e-testing/src/Http/PhpRouter.php
+++ b/e2e-testing/src/Http/PhpRouter.php
@@ -25,7 +25,7 @@ public static function generate(string $index, string $prelude = ''): string
 
             $prelude
 
-            \$path = rawurldecode(parse_url(\$_SERVER['REQUEST_URI'], PHP_URL_PATH) ?? '/');
+            \$path = rawurldecode((string) parse_url(\$_SERVER['REQUEST_URI'], PHP_URL_PATH) ?: '/');
 
             if ('/' !== \$path && is_file(\$_SERVER['DOCUMENT_ROOT'].\$path)) {
                 return false;
diff --git a/e2e-testing/tests/LocalApplicationServerTest.php b/e2e-testing/tests/LocalApplicationServerTest.php
index 187d829..bbbbd0f 100644
--- a/e2e-testing/tests/LocalApplicationServerTest.php
+++ b/e2e-testing/tests/LocalApplicationServerTest.php
@@ -65,6 +65,19 @@ public function testPhpServerHandlesFrontControllerRoutesAndStaticFilesAndStops(
         $this->assertStopped($server->baseUri);
     }
 
+    public function testPhpServerPassesDoubleSlashRequestsToTheFrontController(): void
+    {
+        $server = (new WebServerManager())->start(WebServerConfig::php($this->directory));
+
+        try {
+            $response = HttpClient::create()->request('GET', $server->baseUri.'//');
+            $this->assertSame(200, $response->getStatusCode());
+            $this->assertSame('//', $response->toArray()['uri']);
+        } finally {
+            $server->stop();
+        }
+    }
+
     public function testServerLoggingCannotBlockRequests(): void
     {
         (new Filesystem())->dumpFile($this->directory.'/public/index.php', '<?php error_log(str_repeat("x", 8192)); echo "OK";');