Fix race condition in EventTest.PreventDefault_DoNotApplyByDefault (#63384)

Author: oroztocil

src/Components/test/E2ETest/Tests/EventTest.cs

@@ -278,12 +278,13 @@ public void PreventDefault_AppliesToFormOnSubmitHandlers()
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspnetcore/issues/62533")]
-    public void PreventDefault_DotNotApplyByDefault()
+    public void PreventDefault_DoNotApplyByDefault()
     {
         var appElement = Browser.MountTestComponent<EventPreventDefaultComponent>();
         appElement.FindElement(By.Id("form-2-button")).Click();
-        Assert.Contains("about:blank", Browser.Url);
+
+        // The URL should change because the submit event is not prevented
+        Browser.Contains("about:blank", () => Browser.Url);
     }
 
     [Fact]