gecko-dev/layout/generic/crashtests/details-display-none-summary-3.html

<!DOCTYPE html>
<!-- Any copyright is dedicated to the Public Domain.
   - http://creativecommons.org/publicdomain/zero/1.0/ -->

<html>
  <body>
    <details open>
      <summary style="display: none;">summary (display: none)</summary>
      <summary>summary 2</summary>
      <p>This is the details.</p>
    </details>
  </body>
</html>
Bug 1245424 Part 1 - Fix assert for a display:none summary on debug build. r=bz If the main summary element has 'display: none' style, it won't generates a summary frame as the first child of the details. However, if a details element have two summaries and the first summary has 'display: none', the second summary still generates a SummaryFrame event if it isn't the main summary. So instead of checking on the SummaryFrame as before, I check the content tree for the main summary by using the idea in bug 1245424 comment 8. Another reason might be the potential removal of SummaryFrame in bug 1258657. MozReview-Commit-ID: H0evZ17zj5k --HG-- extra : rebase_source : 1aad3ad1d31dc277771013f92eace5cefa7d6112 2016-03-24 07:05:29 +00:00			`<!DOCTYPE html>`
			`<!-- Any copyright is dedicated to the Public Domain.`
			`- http://creativecommons.org/publicdomain/zero/1.0/ -->`

			`<html>`
			`<body>`
			`<details open>`
			`<summary style="display: none;">summary (display: none)</summary>`
			`<summary>summary 2</summary>`
			`<p>This is the details.</p>`
			`</details>`
			`</body>`
			`</html>`