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<!DOCTYPE html>
<meta charset="utf-8">
<title>IDBIndex.count() - 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-count-IDBRequest-any-key">
<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(e) {
db = e.target.result;
var store = db.createObjectStore("store", { autoIncrement: true });
store.createIndex("index", "indexedProperty");
for(var i = 0; i < 10; i++) {
store.add({ indexedProperty: "data" + i });
}
}
open_rq.onsuccess = function(e) {
var index = db.transaction("store", "readonly", {durability: 'relaxed'})
.objectStore("store")
.index("index");
assert_throws_dom("DataError", function() {
index.count(NaN);
});
t.done();
}
</script>
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