Accessibility standards require that people are warned when a link will open a new window (since new windows can be hard to navigate and many people would prefer not to click the link if there is a chance they can't get back to the site).
This module offers the ability to force links to open in new windows, but when that option is selected, we should also add a warning.
When the option to force links to open in new windows IS NOT selected
<a href="https://bayareametro.zoom.us/j/85868739599" rel="nofollow noopener noreferrer" class="ext" data-extlink="">
Attend on Zoom
<span class="fa-ext extlink">
<span class="fa fa-external-link"></span>
<span class="sr-only">Link is external.</span>
</span>
</a>
When the option to force links to open in new windows IS selected
<a href="https://bayareametro.zoom.us/j/85868739599" rel="nofollow noopener noreferrer" class="ext" data-extlink="" target="_blank">
Attend on Zoom
<span class="fa-ext extlink">
<span class="fa fa-external-link"></span>
<span class="sr-only">link is external, and opens a new window.</span>
</span>
</a>
Closed: duplicate
1.0
Code
See related: https://www.drupal.org/project/extlink/issues/3054538#comment-15555115 ✨ A11y: add screen reader text for external links Needs review
It looks like people are using https://www.drupal.org/node/3054538 → to discuss the warning, so I'm going to close this issue in favor of that one.