<!DOCTYPE html> <meta charset="utf-8"> <title>IDBDatabase.createObjectStore() - attempting to create an existing object store with a different keyPath throw ConstraintError </title> <link rel="author" title="Intel" href="http://www.intel.com"> <link rel="help" href="https://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#widl-IDBDatabase-createObjectStore-IDBObjectStore-DOMString-name-IDBObjectStoreParameters-optionalParameters"> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="support.js"></script> <div id="log"></div> <script> var t = async_test(), open_rq = createdb(t); open_rq.onupgradeneeded = function (e) { var db = e.target.result; db.createObjectStore("store"); assert_throws("ConstraintError", function(){ db.createObjectStore("store", { keyPath: "key1", }); }); t.done(); } </script>