CSSImportRule-insertRule-styleSheet-parentStyleSheet.html

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /css/cssom/CSSImportRule-insertRule-styleSheet-parentStyleSheet.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>Inserted @import rule's styleSheet.parentStyleSheet</title>

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

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

<link rel="help" href="https://drafts.csswg.org/cssom/#dom-cssimportrule-stylesheet">

<script>

"use strict";

test(() => {

  const style = document.createElement("style");

  document.head.appendChild(style);

  const { sheet } = style;

  sheet.insertRule('@import "data:text/css,"', 0);

  const rule = sheet.cssRules[0];

  assert_equals(

    rule.styleSheet.parentStyleSheet,

    sheet,

    "The imported stylesheet's parentStyleSheet should be the sheet it was inserted into"

);

  style.remove();

}, "insertRule @import produces a styleSheet whose parentStyleSheet is the containing sheet");

</script>