Unfortunately, we cannot use this plugin in our WordPress environment. When activated, it always produces a fatal "Cannot modify header information" error when one tries to browse to previous pages in the pagination.
The full error is this:
Warning: Cannot modify header information - headers already sent by (output started at [...]/wp-content/plugins/co-authors-plus/template-tags.php:182) in [...]/wp-includes/pluggable.php on line 875.
I don't expect there to be an easy solution to this and I didn't find anything similar in the forum but I thought it should be noted.