Masayuki Nakano 1125b625c3 Bug 1715603 - part 1: Don't extend selection into a link r=edgar
If middle button click with `Shift` key occurs, Chrome and Safari extend the
selection in most cases.  However, if the clicked position is in a link,
Chrome does:
* If editable, collapse selection into the link instead of extending selection.
* If not editable, not extending selection and open tabs.

We should follow this behavior for both backward compatibility and web-compat.

Differential Revision: https://phabricator.services.mozilla.com/D119252
2021-07-13 08:15:55 +00:00
..