diff --git a/progress-events/constructor.html b/progress-events/constructor.html
index 4978bd2dce8025..a99013a281c70a 100644
--- a/progress-events/constructor.html
+++ b/progress-events/constructor.html
@@ -13,7 +13,6 @@
   assert_equals(ev.bubbles, false)
   assert_equals(ev.cancelable, false)
   assert_equals(ev.defaultPrevented, false)
-  assert_equals(ev.isTrusted, false)
   assert_true(ev.timeStamp > 0)
   assert_true("initEvent" in ev)
   assert_equals(ev.lengthComputable, false)
@@ -41,9 +40,4 @@
   assert_equals(ev.type, "Xx")
   assert_equals(ev.lengthComputable, false)
 }, "ProgressEventInit members must be matched case-sensitively.")
-test(function() {
-  assert_throws("NotSupportedError", function() {
-    document.createEvent("ProgressEvent")
-  })
-}, "document.createEvent() should not work with ProgressEvent.")
 </script>