X-Git-Url: http://source.bookstackapp.com/bookstack/blobdiff_plain/903895814ace77cd30c22b57de16f9e22daf21e4..refs/pull/5685/head:/app/Util/SsrUrlValidator.php

diff --git a/app/Util/SsrUrlValidator.php b/app/Util/SsrUrlValidator.php
index 0b3a6a31d..076a653fc 100644
--- a/app/Util/SsrUrlValidator.php
+++ b/app/Util/SsrUrlValidator.php
@@ -4,11 +4,16 @@ namespace BookStack\Util;
 
 use BookStack\Exceptions\HttpFetchException;
 
+/**
+ * Validate the host we're connecting to when making a server-side-request.
+ * Will use the given hosts config if given during construction otherwise
+ * will look to the app configured config.
+ */
 class SsrUrlValidator
 {
     protected string $config;
 
-    public function __construct(string $config = null)
+    public function __construct(?string $config = null)
     {
         $this->config = $config ?? config('app.ssr_hosts') ?? '';
     }