diff --git a/Router.php b/Router.php
index e3d86b1..8eef534 100644
--- a/Router.php
+++ b/Router.php
@@ -128,7 +128,7 @@ public static function handle($class, $method, $vars, $routeParams)
       }
       catch (\Throwable $e)
       {
-        throw new \Exception($e->getMessage());
+        self::displayError('Signature verification failed', 400);
       }
     }
 
@@ -246,7 +246,8 @@ public static function fetch_from_array(&$array, $index=null, $default = null)
   private static function getAuthorizationHeader() {
     // convert all headers to lowercase:
     $headers = array();
-    foreach($_SERVER as $key => $value) {
+    $header_variables = array_merge($_SERVER, getallheaders());
+    foreach($header_variables as $key => $value) {
       $headers[strtolower($key)] = $value;
     }
 
@@ -310,4 +311,4 @@ public static function displayError ($message, $status = 500) {
 
 // set_error_handler("ProcessWire\Router::handleError");
 // set_exception_handler('ProcessWire\Router::handleException');
-// register_shutdown_function('ProcessWire\Router::handleFatalError');
\ No newline at end of file
+// register_shutdown_function('ProcessWire\Router::handleFatalError');