declarative-parser-interaction.html

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This WPT test may be referenced by the following Test IDs:
- /shadow-dom/declarative/declarative-parser-interaction.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>Declarative Shadow DOM</title>

<link rel="author" href="mailto:masonf@chromium.org">

<link rel="help" href="https://github.com/whatwg/dom/issues/831">

<link rel="help" href="https://crbug.com/1203645">

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

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

<script src="support/helpers.js"></script>

This test should not crash, and there should be two lines of text visible below.

<x-1>

    <template shadowrootmode="open">

        <style>

            @import 'non-existent.css';

        </style>

        <slot></slot>

    </template>

    <p>Line 1</p>

</x-1>

<x-2>

    <template shadowrootmode="open">

        <slot></slot>

    </template>

    <p>Line 2</p>

</x-2>

<script>

  window.onload = function() {

    const x1 = document.querySelector('x-1');

    const x2 = document.querySelector('x-2');

    test(() => {

      assert_true(!!x1);

      assert_true(!!x2);

    }, 'Declarative Shadow DOM: Test for crashes and improper parsing');

</script>