From 5e518b741704b738e29352c341ee6a956cce1fff Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=BF=B7=E6=B8=A1?= <justjavac@gmail.com>
Date: Thu, 27 Dec 2018 10:12:55 +0800
Subject: check runtime `FormData` and `Headers` params (#1415)

---
 js/mixins/dom_iterable.ts | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'js/mixins')

diff --git a/js/mixins/dom_iterable.ts b/js/mixins/dom_iterable.ts
index 2daf80b71..6a2a9fcfe 100644
--- a/js/mixins/dom_iterable.ts
+++ b/js/mixins/dom_iterable.ts
@@ -1,5 +1,6 @@
 import { DomIterable } from "../dom_types";
 import { globalEval } from "../global_eval";
+import { requiredArguments } from "../util";
 
 // if we import it directly from "globals" it will break the unit tests so we
 // have to grab a reference to the global scope a different way
@@ -52,6 +53,11 @@ export function DomIterableMixin<K, V, TBase extends Constructor>(
       // tslint:disable-next-line:no-any
       thisArg?: any
     ): void {
+      requiredArguments(
+        `${this.constructor.name}.forEach`,
+        arguments.length,
+        1
+      );
       callbackfn = callbackfn.bind(thisArg == null ? window : Object(thisArg));
       for (const [key, value] of (this as any)[dataSymbol]) {
         callbackfn(value, key, this);
-- 
cgit v1.2.3