This is due to the fact that the textarea editor is absolutely positioned and sits over the link element, preventing any interaction.
<rdar://problem/28239194>
Created attachment 288486 [details] Patch
Comment on attachment 288486 [details] Patch r=me
Comment on attachment 288486 [details] Patch Clearing flags on attachment: 288486 Committed r205792: <http://trac.webkit.org/changeset/205792>
All reviewed patches have been landed. Closing bug.
*** Bug 161850 has been marked as a duplicate of this bug. ***