X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/4531e540746749391f1004f601eb78b42b826fd7..397f1cbc7625b76832e3a6d41ebd7cd871c8cbc9:/doc/todo/pingback_support.mdwn

diff --git a/doc/todo/pingback_support.mdwn b/doc/todo/pingback_support.mdwn
index 3a7b5a931..b10366bda 100644
--- a/doc/todo/pingback_support.mdwn
+++ b/doc/todo/pingback_support.mdwn
@@ -28,6 +28,9 @@ case I will consider this done with an entry in [[tips]]; otherwise a
 > would be subject to the usual comment filtering (ie, blogspam) and
 > moderation and would then show up amoung the other, regular comments on
 > the page.
+>
+> (One wrinkle: would need to guard against duplicate pings. Maybe by
+> checking existing comments for any that have the same url?)
 > 
 > As for sending trackbacks and pingbacks, this could fairly easily be
 > implemented using a `editcontent` hook. Since this hook is called