[HttpFoundation] Add HTTP_EARLY_HINTS const

ahmadmayahi · fabpot · commit c606d60c54ce · 2018-04-23T14:28:22.000+02:00
diff --git a/src/Symfony/Component/HttpFoundation/Response.php b/src/Symfony/Component/HttpFoundation/Response.php
@@ -21,6 +21,7 @@ class Response
     const HTTP_CONTINUE = 100;
     const HTTP_SWITCHING_PROTOCOLS = 101;
     const HTTP_PROCESSING = 102;            // RFC2518
+    const HTTP_EARLY_HINTS = 103;           // RFC8297
     const HTTP_OK = 200;
     const HTTP_CREATED = 201;
     const HTTP_ACCEPTED = 202;
