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diff --git a/testing/web-platform/tests/IndexedDB/idbcursor-continue-exception-order.htm b/testing/web-platform/tests/IndexedDB/idbcursor-continue-exception-order.htm
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+++ b/testing/web-platform/tests/IndexedDB/idbcursor-continue-exception-order.htm
@@ -0,0 +1,81 @@
+<!DOCTYPE html>
+<title>IndexedDB: IDBCursor continue() Exception Ordering</title>
+<meta charset=utf-8>
+<link rel="help" href="https://w3c.github.io/IndexedDB/#dom-idbcursor-continue">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/support.js"></script>
+<script>
+
+indexeddb_test(
+  (t, db) => {
+    const s = db.createObjectStore('s');
+    s.put('value', 'key');
+  },
+  (t, db) => {
+    const s = db.transaction('s', 'readonly', {durability: 'relaxed'}).objectStore('s');
+    const r = s.openKeyCursor();
+    r.onsuccess = t.step_func(() => {
+      r.onsuccess = null;
+      const cursor = r.result;
+      setTimeout(t.step_func(() => {
+        assert_throws_dom('TransactionInactiveError', () => {
+          cursor.continue({not: "a valid key"});
+        }, '"Transaction inactive" check (TransactionInactiveError) ' +
+           'should precede "invalid key" check (DataError)');
+        t.done();
+      }), 0);
+    });
+  },
+  'IDBCursor.continue exception order: TransactionInactiveError vs. DataError'
+);
+
+indexeddb_test(
+  (t, db) => {
+    const s = db.createObjectStore('s');
+    s.put('value', 'key');
+  },
+  (t, db) => {
+    const s = db.transaction('s', 'readonly', {durability: 'relaxed'}).objectStore('s');
+    const r = s.openKeyCursor();
+    r.onsuccess = t.step_func(() => {
+      r.onsuccess = null;
+      const cursor = r.result;
+      cursor.continue();
+      r.onsuccess = t.step_func(() => {
+        setTimeout(t.step_func(() => {
+          assert_throws_dom('TransactionInactiveError', () => {
+            cursor.continue();
+          }, '"Transaction inactive" check (TransactionInactiveError) ' +
+             'should precede "got value flag" check (InvalidStateError)');
+          t.done();
+        }), 0);
+      });
+    });
+  },
+  'IDBCursor.continue exception order: TransactionInactiveError vs. InvalidStateError'
+);
+
+indexeddb_test(
+  (t, db) => {
+    const s = db.createObjectStore('s');
+    s.put('value', 'key');
+  },
+  (t, db) => {
+    const s = db.transaction('s', 'readonly', {durability: 'relaxed'}).objectStore('s');
+    const r = s.openKeyCursor();
+    r.onsuccess = t.step_func(() => {
+      r.onsuccess = null;
+      const cursor = r.result;
+      cursor.continue();
+      assert_throws_dom('InvalidStateError', () => {
+        cursor.continue({not: "a valid key"});
+      }, '"got value flag" check (InvalidStateError) should precede ' +
+         '"invalid key" check (DataError)');
+      t.done();
+    });
+  },
+  'IDBCursor.continue exception order: InvalidStateError vs. DataError'
+);
+
+</script>