fixed home button URI

src/web/themes/custom/ouatminimal_theme/ouatminimal.theme

@@ -106,6 +106,6 @@ function ouatminimal_preprocess_toolbar(&$variables) {
   unset($variables['tabs']['home']['link']['#attributes']['data-toolbar-escape-admin']);
   unset($variables['tabs']['home']['link']['#markup']);
   unset($variables['tabs']['home']['link']['#children']);
-  $uri = $_SERVER['HTTP_REFERER'];
+  $uri = $_SERVER['REQUEST_SCHEME'] . '://' . $_SERVER['HTTP_HOST'];
   $variables['tabs']['home']['link']['#url'] = Url::fromUri($uri);
 }