diff --git a/workers/Worker_cross_origin_security_err.htm b/workers/Worker_cross_origin_security_err.htm
index bbf0c325dcc0e7..3e25d331f3af9e 100644
--- a/workers/Worker_cross_origin_security_err.htm
+++ b/workers/Worker_cross_origin_security_err.htm
@@ -11,7 +11,7 @@
       assert_true(e instanceof Event);
     });
   } catch (e) {
-    assert_unreached("Constructing a cross-origin worker should not synchronously fail. Its error event should be fired instead.");
+    t.done();
   }
 }, "Cross-origin classic workers should fail to fetch");
 
@@ -22,7 +22,7 @@
       assert_true(e instanceof Event);
     });
   } catch (e) {
-    assert_unreached("Constructing a cross-origin module worker should not synchronously fail. Its error even should be fired instead.");
+    t.done();
   }
 }, "Cross-origin module workers should fail to fetch");
 </script>
diff --git a/workers/constructors/SharedWorker/same-origin.html b/workers/constructors/SharedWorker/same-origin.html
index 78d53164e6423f..51c698350a6631 100644
--- a/workers/constructors/SharedWorker/same-origin.html
+++ b/workers/constructors/SharedWorker/same-origin.html
@@ -19,7 +19,7 @@
       assert_true(e instanceof Event);
     });
   } catch (e) {
-    t.step_func_done(function(e) { assert_true(true); });
+    t.done();
   }
 }
 
diff --git a/workers/constructors/Worker/same-origin.html b/workers/constructors/Worker/same-origin.html
index bbc4382d0bbf1c..a4280f2f2cc850 100644
--- a/workers/constructors/Worker/same-origin.html
+++ b/workers/constructors/Worker/same-origin.html
@@ -17,7 +17,7 @@
       assert_true(e instanceof Event);
     });
   } catch (e) {
-    t.step_func_done(function(e) { assert_true(true); });
+    t.done();
   }
 }