diff --git a/testing/web-platform/tests/workers/semantics/multiple-workers/005.html b/testing/web-platform/tests/workers/semantics/multiple-workers/005.html
deleted file mode 100644
index 63738c94132e..000000000000
--- a/testing/web-platform/tests/workers/semantics/multiple-workers/005.html
+++ /dev/null
@@ -1,38 +0,0 @@
-
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-<!doctype html>
-<title>dedicated worker in shared worker in dedicated worker</title>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<div id=log></div>
-<script>
-async_test(function() {
-  var w1 = new Worker('#1');
-  w1.onmessage = this.step_func(function(e) {
-    assert_equals(e.data, '123');
-    this.done();
-  });
-  w1.onerror = this.unreached_func("error");
-});
-</script>
-
-
-
diff --git a/testing/web-platform/tests/workers/semantics/multiple-workers/006-1.js b/testing/web-platform/tests/workers/semantics/multiple-workers/006-1.js
deleted file mode 100644
index 6c1ed932321c..000000000000
--- a/testing/web-platform/tests/workers/semantics/multiple-workers/006-1.js
+++ /dev/null
@@ -1,3 +0,0 @@
-  onconnect = function(e) {
-    e.ports[0].postMessage('3');
-  }
\ No newline at end of file
diff --git a/testing/web-platform/tests/workers/semantics/multiple-workers/006.html b/testing/web-platform/tests/workers/semantics/multiple-workers/006.html
deleted file mode 100644
index c0dbeef9a311..000000000000
--- a/testing/web-platform/tests/workers/semantics/multiple-workers/006.html
+++ /dev/null
@@ -1,39 +0,0 @@
-
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-<!doctype html>
-<title>shared worker in dedicated worker in shared worker</title>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<div id=log></div>
-<script>
-async_test(function() {
-  var w1 = new SharedWorker('#1');
-  w1.port.onmessage = this.step_func(function(e) {
-    assert_equals(e.data, '123');
-    this.done();
-  });
-  w1.onerror = this.unreached_func("error");
-});
-</script>
-
-
-
diff --git a/testing/web-platform/tests/workers/semantics/multiple-workers/007.html b/testing/web-platform/tests/workers/semantics/multiple-workers/007.html
deleted file mode 100644
index a23292532576..000000000000
--- a/testing/web-platform/tests/workers/semantics/multiple-workers/007.html
+++ /dev/null
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-<!doctype html>
-<title>shared worker in dedicated worker in shared worker</title>
-<meta name="timeout" content="long">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<div id=log></div>
-<script>
-async_test(function() {
-  var w1 = new SharedWorker('#1');
-  w1.port.onmessage = this.step_func(function(e) {
-    assert_equals(e.data, '123');
-    this.done();
-  });
-  w1.onerror = this.unreached_func("error");
-});
-</script>
-
-
-
diff --git a/testing/web-platform/tests/workers/semantics/multiple-workers/exposure.any.js b/testing/web-platform/tests/workers/semantics/multiple-workers/exposure.any.js
new file mode 100644
index 000000000000..baaf07160475
--- /dev/null
+++ b/testing/web-platform/tests/workers/semantics/multiple-workers/exposure.any.js
@@ -0,0 +1,11 @@
+
+
+test(() => {
+  const assert = "ServiceWorkerGlobalScope" in globalThis ? assert_equals : assert_not_equals;
+  assert(globalThis.Worker, undefined);
+}, "Worker exposure");
+
+test(() => {
+  const assert = globalThis.GLOBAL.isWindow() ? assert_not_equals : assert_equals;
+  assert(globalThis.SharedWorker, undefined);
+}, "SharedWorker exposure");
