<!DOCTYPE html> <meta charset="utf-8"> <title>IDBDatabase.createIndex() - Operate out versionchange throw InvalidStateError </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-IDBObjectStore-createIndex-IDBIndex-DOMString-name-DOMString-sequence-DOMString--keyPath-IDBIndexParameters-optionalParameters"> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="resources/support.js"></script> <div id="log"></div> <script> var db, t = async_test(); var open_rq = createdb(t); open_rq.onupgradeneeded = function (event) { db = event.target.result; db.createObjectStore("store"); } open_rq.onsuccess = function (event) { var txn = db.transaction("store", "readwrite", {durability: 'relaxed'}); var ostore = txn.objectStore("store"); t.step(function(){ assert_throws_dom("InvalidStateError", function(){ ostore.createIndex("index", "indexedProperty"); }); }); t.done(); } </script>