domparser-spurious-attributes.html

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<!DOCTYPE html>

<meta charset="utf-8">

<title>Spurious attributes in DOMParser</title>

<link rel="help" href="https://crbug.com/435995566">

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

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

<body>

<script>

test(() => {

  const html = `<div title="this-should-not-be-an-attribute=1>&quot;hello"></div>`;

  const doc = new DOMParser().parseFromString(html, "text/html");

  const div = doc.querySelector("div");

  assert_false(div.hasAttribute("this-should-not-be-an-attribute"));

  assert_equals(div.getAttribute("title"), 'this-should-not-be-an-attribute=1>"hello');

}, 'Using ">" and HTML entities in an attribute creates no unexpected attributes.');

test(() => {

  const html = `<div title="this-should-not-be-an-attribute=1>\rhello"></div>`;

  const doc = new DOMParser().parseFromString(html, "text/html");

  const div = doc.querySelector("div");

  assert_false(div.hasAttribute("this-should-not-be-an-attribute"));

  // Note: "\r" gets normalized to "\n" per https://infra.spec.whatwg.org/#normalize-newlines.

  assert_equals(div.getAttribute("title"), 'this-should-not-be-an-attribute=1>\nhello');

}, 'Using ">" and "\\r" in an attribute creates no unexpected attributes.');

</script>