<!DOCTYPE HTML>
<link rel="help" href="http://url.spec.whatwg.org/#dom-url-hash">
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script>
test(function() {
var url = new URL('http://www.domain.com/');
assert_equals(url.hash, '');
url = new URL('http://www.domain.com/#');
assert_equals(url.hash, '');
url = new URL('http://www.domain.com/#a');
assert_equals(url.hash, '#a');
url.hash = '';
assert_equals(url.hash, '');
assert_equals(url.toString(), 'http://www.domain.com/');
url.hash = '#';
assert_equals(url.hash, '');
assert_equals(url.toString(), 'http://www.domain.com/#');
url.hash = 'a';
assert_equals(url.hash, '#a');
url.hash = '#a';
assert_equals(url.hash, '#a');
url.hash = 'a#b';
assert_equals(url.hash, '#a#b');
}, 'Basic hash');
test(function() {
var url = new URL('mailto:[email protected]');
assert_equals(url.hash, '');
url.hash = 'a';
// Fails unless kStandardCompliantNonSpecialSchemeURLParsing is enabled.
// See crbug.com/40063064.
assert_equals(url.hash, '#a');
}, 'non hierarchical');
test(function() {
var url = new URL('http://abc.de:8080/path/file?query#fragment');
var expected = '#fragment';
assert_equals(url.hash, expected);
assert_throws_js(TypeError, () => { url.href = 'invalid'; });
assert_equals(url.hash, expected);
url.hash = 'changed';
assert_equals(url.hash, '#changed');
assert_equals(url.href, 'http://abc.de:8080/path/file?query#changed');
}, 'hash property invalid URL');
test(function() {
var url = new URL('http://www.domain.com/');
assert_equals(url.hash, '');
url.hash = '\udc01\ud802a';
assert_equals(url.hash, '#%EF%BF%BD%EF%BF%BDa');
}, 'hash with unmatched surrogates');
</script>