HTML Page has a title: Expectation is ambiguous

[kasperisager]

This is basically the same issue as #315, just for https://auto-wcag.github.io/auto-wcag/rules/SC2-4-2-page-has-title.html, and relates to the fact that the term contain is not defined. Consider the following snippet of HTML:

<div>
  <title>I'm not rendered</title>
</div>

<script>
  {
    const host = document.querySelector("div");
    const root = host.attachShadow({ mode: "open" });

    root.innerHTML = `
      <p>I'm rendered</p>
    `;
  }
</script>

In well-defined terms, the <div> has the following:

• A single descendant: <title>I'm not rendered</title>.
• Two shadow-including descendants: <title>I'm not rendered</title> and <p>I'm rendered</p>.
• A single descendant in the flat tree: <p>I'm rendered</p>.

Opposite #315, the first two options will cause the rule to pass, while the third option will cause the rule to fail.

As an aside, Chrome actually picks up the <title> even though its not included in the flat tree.

[annethyme]

@WilcoFiers, could we maybe take this up on the f2f next week?

[annethyme]

@kasperisager, can Siteimprove come up with a proposal?

[annethyme]

Will be handled by #432