Add CDN-Loop request header

Author: natanfelles

.phpstorm.meta.php

@@ -184,6 +184,7 @@
     \Framework\HTTP\RequestHeader::ACCESS_CONTROL_REQUEST_METHOD,
     \Framework\HTTP\RequestHeader::AUTHORIZATION,
     \Framework\HTTP\RequestHeader::CACHE_CONTROL,
+    \Framework\HTTP\RequestHeader::CDN_LOOP,
     \Framework\HTTP\RequestHeader::CONNECTION,
     \Framework\HTTP\RequestHeader::CONTENT_DISPOSITION,
     \Framework\HTTP\RequestHeader::CONTENT_ENCODING,

src/HeaderTrait.php

@@ -150,6 +150,7 @@ trait HeaderTrait
         'access-control-request-headers' => 'Access-Control-Request-Headers',
         'access-control-request-method' => 'Access-Control-Request-Method',
         'authorization' => 'Authorization',
+        'cdn-loop' => 'CDN-Loop',
         'cookie' => 'Cookie',
         'dnt' => 'DNT',
         'expect' => 'Expect',
@@ -246,6 +247,7 @@ public static function setName(string $name) : void
     public static function getMultilines() : array
     {
         return [
+            'cdn-loop',
             'date',
             'expires',
             'if-modified-since',

src/RequestHeader.php

@@ -47,6 +47,10 @@ class RequestHeader
      * @see https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Authorization
      */
     public const string AUTHORIZATION = 'Authorization';
+    /**
+     * @see https://datatracker.ietf.org/doc/html/rfc8586
+     */
+    public const string CDN_LOOP = 'CDN-Loop';
     /**
      * @see https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cookie
      */