nodejs
diff --git a/Collapse file
‎lib/internal/event_target.js‎
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+4Lines changed: 4 additions & 0 deletions b/Collapse file
‎lib/internal/event_target.js‎
Copy file name to clipboardExpand all lines: lib/internal/event_target.js
+4Lines changed: 4 additions & 0 deletions
diff --git a/Collapse file
‎test/parallel/test-eventtarget.js‎
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+2Lines changed: 2 additions & 0 deletions b/Collapse file
‎test/parallel/test-eventtarget.js‎
Copy file name to clipboardExpand all lines: test/parallel/test-eventtarget.js
+2Lines changed: 2 additions & 0 deletions
@@ -168,6 +168,10 @@ class Event {
   stopImmediatePropagation() {
     if (!isEvent(this))
       throw new ERR_INVALID_THIS('Event');
+    // Spec mention "stopImmediatePropagation should set both "stop propagation"
+    // and "stop immediate propagation" flags"
+    // cf: from https://dom.spec.whatwg.org/#dom-event-stopimmediatepropagation
+    this.stopPropagation();
     this[kStop] = true;
   }
 
 
@@ -345,7 +345,9 @@ let asyncTest = Promise.resolve();
 {
   const target = new EventTarget();
   const event = new Event('foo');
+  strictEqual(event.cancelBubble, false);
   event.stopImmediatePropagation();
+  strictEqual(event.cancelBubble, true);
   target.addEventListener('foo', common.mustNotCall());
   target.dispatchEvent(event);
 }
Original file line number	Diff line number	Diff line change
`@@ -345,7 +345,9 @@ let asyncTest = Promise.resolve();`
`345`	`345`	`{`
`346`	`346`	`const target = new EventTarget();`
`347`	`347`	`const event = new Event('foo');`
	`348`	`+ strictEqual(event.cancelBubble, false);`
`348`	`349`	`event.stopImmediatePropagation();`
	`350`	`+ strictEqual(event.cancelBubble, true);`
`349`	`351`	`target.addEventListener('foo', common.mustNotCall());`
`350`	`352`	`target.dispatchEvent(event);`
`351`	`353`	`}`