diff --git a/cli/rt/40_performance.js b/cli/rt/40_performance.js
index 573fc8051f..3d8be60314 100644
--- a/cli/rt/40_performance.js
+++ b/cli/rt/40_performance.js
@@ -70,11 +70,11 @@
     }
 
     constructor(
-      name,
-      entryType,
-      startTime,
-      duration,
-      key,
+      name = null,
+      entryType = null,
+      startTime = null,
+      duration = null,
+      key = null,
     ) {
       if (key != illegalConstructorKey) {
         throw new TypeError("Illegal constructor.");
@@ -185,7 +185,7 @@
   }
 
   class Performance {
-    constructor(key) {
+    constructor(key = null) {
       if (key != illegalConstructorKey) {
         throw new TypeError("Illegal constructor.");
       }
diff --git a/cli/rt/40_permissions.js b/cli/rt/40_permissions.js
index 982e4c842d..50d471b6a5 100644
--- a/cli/rt/40_permissions.js
+++ b/cli/rt/40_permissions.js
@@ -17,7 +17,7 @@
   }
 
   class PermissionStatus {
-    constructor(state, key) {
+    constructor(state = null, key = null) {
       if (key != illegalConstructorKey) {
         throw new TypeError("Illegal constructor.");
       }
diff --git a/cli/tests/unit/globals_test.ts b/cli/tests/unit/globals_test.ts
index 422bd2aec4..4fd531b25f 100644
--- a/cli/tests/unit/globals_test.ts
+++ b/cli/tests/unit/globals_test.ts
@@ -40,6 +40,10 @@ unitTest(function globalThisInstanceofWindow(): void {
   assert(globalThis instanceof Window);
 });
 
+unitTest(function globalThisConstructorLength(): void {
+  assert(globalThis.constructor.length === 0);
+});
+
 unitTest(function globalThisInstanceofEventTarget(): void {
   assert(globalThis instanceof EventTarget);
 });
diff --git a/cli/tests/unit/performance_test.ts b/cli/tests/unit/performance_test.ts
index 1df46b1b23..122938b369 100644
--- a/cli/tests/unit/performance_test.ts
+++ b/cli/tests/unit/performance_test.ts
@@ -83,10 +83,12 @@ unitTest(function performanceMeasure() {
 
 unitTest(function performanceIllegalConstructor() {
   assertThrows(() => new Performance(), TypeError, "Illegal constructor.");
+  assertEquals(Performance.length, 0);
 });
 
 unitTest(function performanceEntryIllegalConstructor() {
   assertThrows(() => new PerformanceEntry(), TypeError, "Illegal constructor.");
+  assertEquals(PerformanceEntry.length, 0);
 });
 
 unitTest(function performanceMeasureIllegalConstructor() {
diff --git a/cli/tests/unit/permissions_test.ts b/cli/tests/unit/permissions_test.ts
index eada8fe9a5..dee8aa195b 100644
--- a/cli/tests/unit/permissions_test.ts
+++ b/cli/tests/unit/permissions_test.ts
@@ -1,5 +1,10 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
-import { assertThrows, assertThrowsAsync, unitTest } from "./test_util.ts";
+import {
+  assertEquals,
+  assertThrows,
+  assertThrowsAsync,
+  unitTest,
+} from "./test_util.ts";
 
 unitTest(async function permissionInvalidName(): Promise<void> {
   await assertThrowsAsync(async () => {
@@ -24,4 +29,5 @@ unitTest(function permissionStatusIllegalConstructor() {
     TypeError,
     "Illegal constructor.",
   );
+  assertEquals(Deno.PermissionStatus.length, 0);
 });
diff --git a/op_crates/web/02_abort_signal.js b/op_crates/web/02_abort_signal.js
index 354cd1fbf1..5ee047c360 100644
--- a/op_crates/web/02_abort_signal.js
+++ b/op_crates/web/02_abort_signal.js
@@ -31,7 +31,7 @@
       this.#abortAlgorithms.delete(algorithm);
     }
 
-    constructor(key) {
+    constructor(key = null) {
       if (key != illegalConstructorKey) {
         throw new TypeError("Illegal constructor.");
       }
diff --git a/op_crates/web/03_global_interfaces.js b/op_crates/web/03_global_interfaces.js
index 3c6b5695b7..7ade64cc1a 100644
--- a/op_crates/web/03_global_interfaces.js
+++ b/op_crates/web/03_global_interfaces.js
@@ -4,7 +4,7 @@
   const illegalConstructorKey = Symbol("illegalConstuctorKey");
 
   class Window extends EventTarget {
-    constructor(key) {
+    constructor(key = null) {
       if (key !== illegalConstructorKey) {
         throw new TypeError("Illegal constructor.");
       }
@@ -17,7 +17,7 @@
   }
 
   class WorkerGlobalScope extends EventTarget {
-    constructor(key) {
+    constructor(key = null) {
       if (key != illegalConstructorKey) {
         throw new TypeError("Illegal constructor.");
       }
@@ -30,7 +30,7 @@
   }
 
   class DedicatedWorkerGlobalScope extends WorkerGlobalScope {
-    constructor(key) {
+    constructor(key = null) {
       if (key != illegalConstructorKey) {
         throw new TypeError("Illegal constructor.");
       }
diff --git a/op_crates/web/abort_controller_test.js b/op_crates/web/abort_controller_test.js
index a65bc69ff8..2f26ade285 100644
--- a/op_crates/web/abort_controller_test.js
+++ b/op_crates/web/abort_controller_test.js
@@ -118,6 +118,11 @@ function abortSignalHandlerLocation() {
   const abortHandler = Object.getOwnPropertyDescriptor(signal, "onabort");
   assertEquals(abortHandler, undefined);
 }
+function abortSignalLength() {
+  const controller = new AbortController();
+  const { signal } = controller;
+  assertEquals(signal.constructor.length, 0);
+}
 function main() {
   basicAbortController();
   signalCallsOnabort();
@@ -128,6 +133,7 @@ function main() {
   abortSignalEventOrder();
   abortSignalEventOrderComplex();
   abortSignalHandlerLocation();
+  abortSignalLength();
 }
 
 main();