<!DOCTYPE html> <meta charset="utf-8"> <title>IDBIndex.getKey() - throw DataError when using invalid key </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-IDBIndex-getKey-IDBRequest-any-key"> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="support.js"></script> <div id="log"></div> <script> var db, t = async_test(); var open_rq = createdb(t); open_rq.onupgradeneeded = function(e) { db = e.target.result; var index = db.createObjectStore("test", { keyPath: "key" }) .createIndex("index", "indexedProperty"); assert_throws("DataError",function(){ index.getKey(NaN); }); t.done(); }; </script>