diff --git a/src/Components/test/E2ETest/ServerRenderingTests/BlazorWebJsInitializersTest.cs b/src/Components/test/E2ETest/ServerRenderingTests/BlazorWebJsInitializersTest.cs
index b6e0386d2739..8d0170f8f0be 100644
--- a/src/Components/test/E2ETest/ServerRenderingTests/BlazorWebJsInitializersTest.cs
+++ b/src/Components/test/E2ETest/ServerRenderingTests/BlazorWebJsInitializersTest.cs
@@ -5,6 +5,7 @@
 using Microsoft.AspNetCore.Components.E2ETest.Infrastructure;
 using Microsoft.AspNetCore.Components.E2ETest.Infrastructure.ServerFixtures;
 using Microsoft.AspNetCore.E2ETesting;
+using Microsoft.AspNetCore.InternalTesting;
 using OpenQA.Selenium;
 using TestServer;
 using Xunit.Abstractions;
@@ -27,6 +28,7 @@ public override Task InitializeAsync()
     }
 
     [Theory]
+    [QuarantinedTest("https://github.com/dotnet/aspnetcore/issues/66307")]
     [MemberData(nameof(InitializerTestData))]
     public void InitializersRunsModernCallbacksByDefaultWhenPresent(bool streaming, bool webassembly, bool server, string[] expectedInvokedCallbacks)
     {