diff --git a/Tests/LibWeb/Text/expected/wpt-import/trusted-types/DedicatedWorker-constructor.https.txt b/Tests/LibWeb/Text/expected/wpt-import/trusted-types/DedicatedWorker-constructor.https.txt
new file mode 100644
index 00000000000..f85ce6e47fa
--- /dev/null
+++ b/Tests/LibWeb/Text/expected/wpt-import/trusted-types/DedicatedWorker-constructor.https.txt
@@ -0,0 +1,8 @@
+Harness status: OK
+
+Found 3 tests
+
+3 Pass
+Pass	Create Worker via ScriptTestUrl
+Pass	Block Worker creation via string
+Pass	Create Worker via string with default policy.
\ No newline at end of file
diff --git a/Tests/LibWeb/Text/expected/wpt-import/trusted-types/Range-createContextualFragment.txt b/Tests/LibWeb/Text/expected/wpt-import/trusted-types/Range-createContextualFragment.txt
new file mode 100644
index 00000000000..351b40b00cd
--- /dev/null
+++ b/Tests/LibWeb/Text/expected/wpt-import/trusted-types/Range-createContextualFragment.txt
@@ -0,0 +1,6 @@
+Harness status: OK
+
+Found 1 tests
+
+1 Pass
+Pass	range.createContextualFragment assigned via policy (successful HTML transformation).
\ No newline at end of file
diff --git a/Tests/LibWeb/Text/expected/wpt-import/trusted-types/SharedWorker-constructor.https.txt b/Tests/LibWeb/Text/expected/wpt-import/trusted-types/SharedWorker-constructor.https.txt
new file mode 100644
index 00000000000..2b2178b94bf
--- /dev/null
+++ b/Tests/LibWeb/Text/expected/wpt-import/trusted-types/SharedWorker-constructor.https.txt
@@ -0,0 +1,8 @@
+Harness status: OK
+
+Found 3 tests
+
+3 Pass
+Pass	Create SharedWorker via ScriptTestUrl
+Pass	Block SharedWorker creation via string
+Pass	Create SharedWorker via string with default policy.
\ No newline at end of file
diff --git a/Tests/LibWeb/Text/expected/wpt-import/trusted-types/block-string-assignment-to-Range-createContextualFragment.txt b/Tests/LibWeb/Text/expected/wpt-import/trusted-types/block-string-assignment-to-Range-createContextualFragment.txt
new file mode 100644
index 00000000000..00f535fbe75
--- /dev/null
+++ b/Tests/LibWeb/Text/expected/wpt-import/trusted-types/block-string-assignment-to-Range-createContextualFragment.txt
@@ -0,0 +1,10 @@
+Harness status: OK
+
+Found 5 tests
+
+5 Pass
+Pass	range.createContextualFragment assigned via policy (successful HTML transformation).
+Pass	`range.createContextualFragment(string)` throws.
+Pass	`range.createContextualFragment(null)` throws.
+Pass	`range.createContextualFragment(string)` assigned via default policy (successful HTML transformation).
+Pass	`range.createContextualFragment(null)` assigned via default policy does not throw.
\ No newline at end of file
diff --git a/Tests/LibWeb/Text/input/wpt-import/trusted-types/DedicatedWorker-constructor.https.html b/Tests/LibWeb/Text/input/wpt-import/trusted-types/DedicatedWorker-constructor.https.html
new file mode 100644
index 00000000000..61f1b7ebc46
--- /dev/null
+++ b/Tests/LibWeb/Text/input/wpt-import/trusted-types/DedicatedWorker-constructor.https.html
@@ -0,0 +1,52 @@
+<!doctype html>
+<html>
+<head>
+  <meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script';">
+  <script src="../resources/testharness.js"></script>
+  <script src="../resources/testharnessreport.js"></script>
+</head>
+<body>
+<script>
+
+const test_url = "support/WorkerGlobalScope-importScripts.https.js"
+const trusted_url = trustedTypes.createPolicy("anythinggoes", {
+  createScriptURL: x => x}).createScriptURL(test_url);
+const default_url = "support/WorkerGlobalScope-importScripts.potato.js"
+
+test(() => {
+  try {
+    new Worker(trusted_url);
+  } catch (e) {
+    assert_unreached("Worker creation failed: " + e);
+  }
+}, "Create Worker via ScriptTestUrl");
+
+test(() => {
+  assert_throws_js(TypeError, () => new Worker(test_url));
+}, "Block Worker creation via string");
+
+// Tests with default policy.
+let seenTrustedTypeName;
+let seenSinkName;
+function resetSeenArguments() {
+  seenTrustedTypeName = undefined;
+  seenSinkName = undefined;
+}
+
+trustedTypes.createPolicy("default", {
+  createScriptURL: (input, trustedTypeName, sinkName) => {
+    seenTrustedTypeName = trustedTypeName;
+    seenSinkName = sinkName;
+    return input.replace("potato", "https");
+  }
+});
+
+test(t => {
+  t.add_cleanup(resetSeenArguments);
+  new Worker(default_url);
+  assert_equals(seenTrustedTypeName, "TrustedScriptURL");
+  assert_equals(seenSinkName, "Worker constructor");
+}, "Create Worker via string with default policy.");
+
+</script>
+</body>
diff --git a/Tests/LibWeb/Text/input/wpt-import/trusted-types/Range-createContextualFragment.html b/Tests/LibWeb/Text/input/wpt-import/trusted-types/Range-createContextualFragment.html
new file mode 100644
index 00000000000..af1e49d5790
--- /dev/null
+++ b/Tests/LibWeb/Text/input/wpt-import/trusted-types/Range-createContextualFragment.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<script src="../resources/testharness.js"></script>
+<script src="../resources/testharnessreport.js"></script>
+<script src="support/helper.sub.js"></script>
+<body>
+<script>
+  test(t => {
+    let p = createHTML_policy(window, 1);
+    let html = p.createHTML(INPUTS.HTML);
+    var range = document.createRange();
+    range.selectNodeContents(document.documentElement);
+    var result = range.createContextualFragment(html);
+    assert_equals(result.textContent, RESULTS.HTML);
+  }, "range.createContextualFragment assigned via policy (successful HTML transformation).");
+</script>
diff --git a/Tests/LibWeb/Text/input/wpt-import/trusted-types/SharedWorker-constructor.https.html b/Tests/LibWeb/Text/input/wpt-import/trusted-types/SharedWorker-constructor.https.html
new file mode 100644
index 00000000000..a90a4f44690
--- /dev/null
+++ b/Tests/LibWeb/Text/input/wpt-import/trusted-types/SharedWorker-constructor.https.html
@@ -0,0 +1,52 @@
+<!doctype html>
+<html>
+<head>
+  <meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script';">
+  <script src="../resources/testharness.js"></script>
+  <script src="../resources/testharnessreport.js"></script>
+</head>
+<body>
+<script>
+
+const test_url = "support/WorkerGlobalScope-importScripts.https.js"
+const trusted_url = trustedTypes.createPolicy("anythinggoes", {
+  createScriptURL: x => x}).createScriptURL(test_url);
+const default_url = "support/WorkerGlobalScope-importScripts.potato.js"
+
+test(() => {
+  try {
+    new SharedWorker(trusted_url);
+  } catch (e) {
+    assert_unreached("SharedWorker creation failed: " + e);
+  }
+}, "Create SharedWorker via ScriptTestUrl");
+
+test(() => {
+  assert_throws_js(TypeError, () => new SharedWorker(test_url));
+}, "Block SharedWorker creation via string");
+
+// Tests with default policy.
+let seenTrustedTypeName;
+let seenSinkName;
+function resetSeenArguments() {
+  seenTrustedTypeName = undefined;
+  seenSinkName = undefined;
+}
+
+trustedTypes.createPolicy("default", {
+  createScriptURL: (input, trustedTypeName, sinkName) => {
+    seenTrustedTypeName = trustedTypeName;
+    seenSinkName = sinkName;
+    return input.replace("potato", "https");
+  }
+});
+
+test(t => {
+  t.add_cleanup(resetSeenArguments);
+  new SharedWorker(default_url);
+  assert_equals(seenTrustedTypeName, "TrustedScriptURL");
+  assert_equals(seenSinkName, "SharedWorker constructor");
+}, "Create SharedWorker via string with default policy.");
+
+</script>
+</body>
diff --git a/Tests/LibWeb/Text/input/wpt-import/trusted-types/block-string-assignment-to-Range-createContextualFragment.html b/Tests/LibWeb/Text/input/wpt-import/trusted-types/block-string-assignment-to-Range-createContextualFragment.html
new file mode 100644
index 00000000000..237275f9bf6
--- /dev/null
+++ b/Tests/LibWeb/Text/input/wpt-import/trusted-types/block-string-assignment-to-Range-createContextualFragment.html
@@ -0,0 +1,59 @@
+<!DOCTYPE html>
+<script src="../resources/testharness.js"></script>
+<script src="../resources/testharnessreport.js"></script>
+<script src="support/helper.sub.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script';">
+<body>
+<script>
+  // TrustedHTML assignments do not throw.
+  test(t => {
+    let p = createHTML_policy(window, 1);
+    let html = p.createHTML(INPUTS.HTML);
+    var range = document.createRange();
+    range.selectNodeContents(document.documentElement);
+    var result = range.createContextualFragment(html);
+    assert_equals(result.textContent, RESULTS.HTML);
+  }, "range.createContextualFragment assigned via policy (successful HTML transformation).");
+
+  // String assignments throw.
+  test(t => {
+    var range = document.createRange();
+    range.selectNodeContents(document.documentElement);
+    assert_throws_js(TypeError, _ => {
+      var result = range.createContextualFragment("A string");
+    });
+  }, "`range.createContextualFragment(string)` throws.");
+
+  // Null assignment throws.
+  test(t => {
+    var range = document.createRange();
+    range.selectNodeContents(document.documentElement);
+    assert_throws_js(TypeError, _ => {
+      var result = range.createContextualFragment(null);
+    });
+  }, "`range.createContextualFragment(null)` throws.");
+
+  // After default policy creation string assignment implicitly calls createHTML
+  test(t => {
+    let p = window.trustedTypes.createPolicy("default", { createHTML:
+      (value, _, sink) => {
+        assert_equals(sink, "Range createContextualFragment");
+        return createHTMLJS(value);
+      }
+    });
+
+    var range = document.createRange();
+    range.selectNodeContents(document.documentElement);
+    var result = range.createContextualFragment(INPUTS.HTML);
+    assert_equals(result.textContent, RESULTS.HTML);
+  }, "`range.createContextualFragment(string)` assigned via default policy (successful HTML transformation).");
+
+  // After default policy creation null assignment implicitly calls createHTML
+  test(t => {
+    var range = document.createRange();
+    range.selectNodeContents(document.documentElement);
+    var result = range.createContextualFragment(null);
+    assert_equals(result.textContent, "null");
+  }, "`range.createContextualFragment(null)` assigned via default policy does not throw.");
+</script>
