Only add underline to back link when href exists #1620
Merged
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"Browser default behaviour is to underline anchors only when an href is provided. This is to ensure users can identify links on a page (an anchor without an href is not considered a link by default).
This feature also has the side effect of helping developers realise that
they may have missed an href attribute - as they can visually see on the
page that a link is not underlined."
Fixes #1171