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diff --git a/testing/web-platform/tests/dom/events/Event-dispatch-throwing.html b/testing/web-platform/tests/dom/events/Event-dispatch-throwing.html
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+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>Throwing in event listeners</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+setup({allow_uncaught_exception:true})
+
+test(function() {
+ var errorEvents = 0;
+ window.onerror = this.step_func(function(e) {
+ assert_equals(typeof e, 'string');
+ ++errorEvents;
+ });
+
+ var element = document.createElement('div');
+
+ element.addEventListener('click', function() {
+ throw new Error('Error from only listener');
+ });
+
+ element.dispatchEvent(new Event('click'));
+
+ assert_equals(errorEvents, 1);
+}, "Throwing in event listener with a single listeners");
+
+test(function() {
+ var errorEvents = 0;
+ window.onerror = this.step_func(function(e) {
+ assert_equals(typeof e, 'string');
+ ++errorEvents;
+ });
+
+ var element = document.createElement('div');
+
+ var secondCalled = false;
+
+ element.addEventListener('click', function() {
+ throw new Error('Error from first listener');
+ });
+ element.addEventListener('click', this.step_func(function() {
+ secondCalled = true;
+ }), false);
+
+ element.dispatchEvent(new Event('click'));
+
+ assert_equals(errorEvents, 1);
+ assert_true(secondCalled);
+}, "Throwing in event listener with multiple listeners");
+</script>