Error with relative urls

[Nuranto]

When using relative URLs, it creates errors.

The patch could be quite simple, something like that :

diff --git a/src/Middleware/AddHttp2ServerPush.php b/src/Middleware/AddHttp2ServerPush.php
index 253cf28..adb94d8 100644
--- a/src/Middleware/AddHttp2ServerPush.php
+++ b/src/Middleware/AddHttp2ServerPush.php
@@ -115,7 +115,9 @@ class AddHttp2ServerPush
         $type = collect($linkTypeMap)->first(function ($type, $extension) use ($url) {
             return str_contains(strtoupper($url), $extension);
         });
-
+        if(!preg_match('%^https?://%i', $url)) {
+            $basePath = config('http2serverpush.base_path', '/');
+            $url = $basePath . ltrim($url, $basePath);
+        }
         return is_null($type) ? null : "<{$url}>; rel=preload; as={$type}";
     }

But it would require a config file...
In my case, base path is always '/'. But it could be any other path...