feed: declare alternate link to HTML interface

It seems we need to declare "alternate" and "text/html" at least
for feed readers.

diff --git a/lib/PublicInbox/Feed.pm b/lib/PublicInbox/Feed.pm
index 65514eb6797abdd464824ffd94d40509270e91ec..bbc89f2faf0a2a2bf73da926d233e08c3b5ed38d 100644 (file)
--- a/lib/PublicInbox/Feed.pm
+++ b/lib/PublicInbox/Feed.pm
@@ -55,7 +55,8 @@ sub atom_header {
        qq(<?xml version="1.0" encoding="us-ascii"?>\n) .
        qq{<feed\nxmlns="http://www.w3.org/2005/Atom">} .
        qq{$title} .
-       qq(<link\nhref="$feed_opts->{url}"/>) .
+       qq(<link\nrel="alternate"\ntype="text/html") .
+               qq(\nhref="$feed_opts->{url}"/>) .
        qq(<link\nrel="self"\nhref="$feed_opts->{atomurl}"/>) .
        qq(<id>mailto:$feed_opts->{id_addr}</id>);
 }