chore: Update lib/reply.js

Co-authored-by: Uzlopak <aras.abbasi@googlemail.com>
fastify · Sep 3, 2023 · fbcce7c · fbcce7c
1 parent 18c87bc
commit fbcce7c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/reply.js b/lib/reply.js
@@ -244,7 +244,7 @@ Reply.prototype.header = function (key, value = '') {
     }
 
     if (Array.isArray(value)) {
-      this[kReplyHeaders][key] = this[kReplyHeaders][key].concat(value)
+      Array.prototype.push.apply(this[kReplyHeaders][key], value)
     } else {
       this[kReplyHeaders][key].push(value)
     }