diff --git a/src/Provide/Router/RouterContainerProvider.php b/src/Provide/Router/RouterContainerProvider.php
index d7b4cae..5a99b3f 100644
--- a/src/Provide/Router/RouterContainerProvider.php
+++ b/src/Provide/Router/RouterContainerProvider.php
@@ -25,12 +25,14 @@ class RouterContainerProvider implements ProviderInterface
     /**
      * @Inject
      * @Named("routerFile=aura_router_file")
+     * @psalm-suppress UnusedVariable
      */
     #[Inject, Named('routerFile=aura_router_file')]
     public function setRouterContainer(AbstractAppMeta $appMeta, string $routerFile = ''): void
     {
         $this->routerContainer = new RouterContainer();
         $routerFile = $routerFile === '' ? $appMeta->appDir . '/var/conf/aura.route.php' : $routerFile;
+        //  $map is required in $routerFile
         $map = $this->routerContainer->getMap();
         if (! file_exists($routerFile)) {
             throw new InvalidRouterFilePathException($routerFile);
diff --git a/src/Provide/Router/WebServerRequestHeaderProvider.php b/src/Provide/Router/WebServerRequestHeaderProvider.php
index b642fee..751621e 100644
--- a/src/Provide/Router/WebServerRequestHeaderProvider.php
+++ b/src/Provide/Router/WebServerRequestHeaderProvider.php
@@ -8,6 +8,7 @@
 
 use function function_exists;
 use function getallheaders;
+use function is_scalar;
 use function str_replace;
 use function strtolower;
 use function substr;
@@ -31,8 +32,8 @@ private function getAllHeaders(): array
     {
         $headers = [];
         foreach ($_SERVER as $name => $value) {
-            if (substr($name, 0, 5) === 'HTTP_') {
-                $headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
+            if (substr($name, 0, 5) === 'HTTP_' && is_scalar($value)) {
+                $headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = (string) $value;
             }
         }