2 files changed, 20 insertions, 20 deletions
diff --git a/testing/web-platform/tests/workers/constructors/SharedWorker/same-origin.html b/testing/web-platform/tests/workers/constructors/SharedWorker/same-origin.html
index 0bfc503d06..4f1b62a660 100644
--- a/testing/web-platform/tests/workers/constructors/SharedWorker/same-origin.html
+++ b/testing/web-platform/tests/workers/constructors/SharedWorker/same-origin.html
@@ -10,19 +10,19 @@
 setup({allow_uncaught_exception: true});
 
 testSharedWorkerHelper = (t, script) => {
-  try {
-    const worker = new SharedWorker(script, '');
-    worker.onerror = t.step_func_done(e => {
-      assert_true(e instanceof Event);
-    });
-  } catch (e) {
-    assert_throws_dom("SecurityError", () => {throw e}, "DOMExceptions thrown on cross-origin SharedWorker construction must be SecurityErrors");
-    t.done();
-  }
+  const worker = new SharedWorker(script, '');
+  worker.onerror = t.step_func_done(e => {
+    assert_true(e instanceof Event);
+  });
 }
 
 test(() => {
-  assert_throws_dom("SecurityError", () => { new SharedWorker('unsupported:', ''); });
+  assert_throws_dom("SyntaxError", () => { new SharedWorker('https://test:test', ''); });
+}, "non-parsable URL");
+
+async_test(t => {
+  // Parses fine as a URL, fails to fetch according to Fetch
+  testSharedWorkerHelper(t, 'unsupported:');
 }, "unsupported_scheme");
 
 async_test(t => {
diff --git a/testing/web-platform/tests/workers/constructors/Worker/same-origin.html b/testing/web-platform/tests/workers/constructors/Worker/same-origin.html
index cdc36c1718..56dbfe3b3f 100644
--- a/testing/web-platform/tests/workers/constructors/Worker/same-origin.html
+++ b/testing/web-platform/tests/workers/constructors/Worker/same-origin.html
@@ -12,19 +12,19 @@
 setup({allow_uncaught_exception: true});
 
 function testWorkerHelper(t, script) {
-  try {
-    var worker = new Worker(script);
-    worker.onerror = t.step_func_done(function(e) {
-      assert_true(e instanceof Event);
-    });
-  } catch (e) {
-    assert_throws_dom("SecurityError", () => {throw e}, "DOMExceptions thrown on cross-origin Worker construction must be SecurityErrors");
-    t.done();
-  }
+  var worker = new Worker(script);
+  worker.onerror = t.step_func_done(function(e) {
+    assert_true(e instanceof Event);
+  });
 }
 
 test(function() {
-  assert_throws_dom("SecurityError", function() { new Worker('unsupported:'); });
+  assert_throws_dom("SyntaxError", function() { new Worker('https://test:test'); });
+}, "non-parsable URL");
+
+async_test(function(t) {
+  // Parses fine as a URL, fails to fetch according to Fetch
+  testWorkerHelper(t, 'unsupported:');
 }, "unsupported_scheme");
 
 async_test(function() {