hash-empty-string.html

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This WPT test may be referenced by the following Test IDs:
- /html/browsers/browsing-the-web/history-traversal/hash-empty-string.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset="utf8">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<link rel="help"

      href="https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-location-interface:concept-url-fragment-4">

<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1544428">

<link rel="author" title="Zach Hoffman" href="mailto:zach@zrhoffman.net">

<script>

let popstateTriggered = false;

window.addEventListener("popstate", () => popstateTriggered = true);

let hashchangeTriggered = false;

window.addEventListener("hashchange", () => hashchangeTriggered = true);

test(() => {

  assert_equals(location.href.indexOf("#"), -1)

}, "URL has no hash")

location.hash = "";

test(() => {

  assert_false(popstateTriggered);

}, "changing the hash from an empty string to an empty string does not trigger a popstate event")

promise_test(async () => {

  // hashchange is fired async

  await new Promise(r => requestAnimationFrame(() => requestAnimationFrame(r)));

  assert_false(hashchangeTriggered);

}, "changing the hash from an empty string to an empty string does not trigger a hashchange event")

</script>