Hi,
upsuper opened a new pull request at
https://github.com/splitbrain/dokuwiki/pull/2049:
Stopping browser from sending referrer header apparently is a popular function,
and there are several plugins trying to do this via redirect trick (e.g.
[linkprefix](https://www.dokuwiki.org/plugin:linkprefix) and
[refererremove](https://www.dokuwiki.org/plugin:refererremove)).
Nowadays, mainstream browsers [all support
`rel="noreferrer"`](http://caniuse.com/#feat=rel-noreferrer), so the simplest
way to just add `noreferrer` to `rel` attribute of external links like
`nofollow`.
Please help us to review this pull request, so new contributors get feedback in
a timely manner.
a648bd10-69c8-11e7-87a0-0975b7544818
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