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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /custom-elements/parser/parser-constructs-custom-element-in-document-write.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html>
<head>
<title>Custom Elements: Changes to the HTML parser</title>
<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">
<meta name="assert" content="HTML parser must construct custom elements inside document.write">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<div id="log"></div>
<script>
var numberOfChildNodesInConnectedCallback = 0;
class MyCustomElement extends HTMLElement {
connectedCallback() {
numberOfChildNodesInConnectedCallback = this.childNodes.length;
}
}
customElements.define('my-custom-element', MyCustomElement);
document.write('<my-custom-element>hello <b>world</b></my-custom-element>');
test(function () {
var instance = document.querySelector('my-custom-element');
assert_true(instance instanceof HTMLElement);
assert_true(instance instanceof MyCustomElement);
}, 'HTML parser must instantiate custom elements inside document.write');
test(function () {
assert_equals(numberOfChildNodesInConnectedCallback, 0);
}, 'HTML parser should call connectedCallback before appending child nodes inside document.write');
</script>
</body>
</html>