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Test Info:

<!doctype html>
<title>DOMParser basic test of HTML parsing</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
// |expected| should be an object indicating the expected type of node.
function assert_node(actual, expected) {
assert_true(actual instanceof expected.type,
'Node type mismatch: actual = ' + + ', expected = ' +;
if (typeof( !== 'undefined')
assert_equals(,, expected.idMessage);
var doc;
setup(function() {
var parser = new DOMParser();
var input = '<html id="root"><head></head><body></body></html>';
doc = parser.parseFromString(input, 'text/html');
test(function() {
var root = doc.documentElement;
assert_node(root, { type: HTMLHtmlElement, id: 'root',
idMessage: 'documentElement id attribute should be root.' });
}, 'Parsing of id attribute');
test(function() {
assert_equals(doc.contentType, "text/html")
}, 'contentType');
test(function() {
assert_equals(doc.compatMode, "BackCompat")
}, 'compatMode');
test(function() {
var parser = new DOMParser();
var input = '<!DOCTYPE html><html id="root"><head></head><body></body></html>';
doc = parser.parseFromString(input, 'text/html');
assert_equals(doc.compatMode, "CSS1Compat")
}, 'compatMode for a proper DOCTYPE');
// URL- and encoding-related stuff tested separately.
test(function() {
assert_equals(doc.location, null,
'The document must have a location value of null.');
}, 'Location value');
test(function() {
var soup = "<!DOCTYPE foo></><foo></multiple></>";
var htmldoc = new DOMParser().parseFromString(soup, "text/html");
assert_equals(htmldoc.documentElement.localName, "html");
assert_equals(htmldoc.documentElement.namespaceURI, "");
}, "DOMParser parses HTML tag soup with no problems");
test(function() {
const doc = new DOMParser().parseFromString('<noembed>&lt;a&gt;</noembed>', 'text/html');
assert_equals(doc.querySelector('noembed').textContent, '&lt;a&gt;');
}, 'DOMParser should handle the content of <noembed> as raw text');
test(function() {
assert_throws_js(TypeError, function() {
new DOMParser().parseFromString("", "text/foo-this-is-invalid");
}, "DOMParser throws on an invalid enum value")
test(() => {
const doc = new DOMParser().parseFromString(`
@import url(/dummy.css)
<script>document.x = 8<\/script>
</body></html>`, 'text/html');
assert_not_equals(doc.querySelector('script'), null, 'script must be found');
assert_equals(doc.x, undefined, 'script must not be executed on the inner document');
assert_equals(document.x, undefined, 'script must not be executed on the outer document');
}, 'script is found synchronously even when there is a css import');
test(() => {
const doc = new DOMParser().parseFromString(`<body><noscript><p id="test1">test1<p id="test2">test2</noscript>`, 'text/html');
assert_node(doc.body.firstChild.childNodes[0], { type: HTMLParagraphElement, id: 'test1' });
assert_node(doc.body.firstChild.childNodes[1], { type: HTMLParagraphElement, id: 'test2' });
}, 'must be parsed with scripting disabled, so noscript works');