cgi: set charset in responses

This ought to prevent browsers from misguessing/misdetecting
things.

diff --git a/public-inbox.cgi b/public-inbox.cgi
index 3bc6eca3c574fbe31e67a07141c10a0269c7b2c8..1d43b86fb0563061fdb5d8283e0419866ba5ac22 100755 (executable)
--- a/public-inbox.cgi
+++ b/public-inbox.cgi
@@ -132,7 +132,7 @@ sub get_atom {
 sub get_index {
        my ($ctx, $cgi, $top) = @_;
        require PublicInbox::Feed;
-       [ 200, [ 'Content-Type' => 'text/html' ],
+       [ 200, [ 'Content-Type' => 'text/html; charset=UTF-8' ],
          [ PublicInbox::Feed->generate_html_index({
                        git_dir => $ctx->{git_dir},
                        listname => $ctx->{listname},
@@ -184,7 +184,7 @@ sub get_mid_html {
                                                uri_escape_utf8($ctx->{mid}));
        my $pfx = "../f/$mid_href.html";
        require Email::MIME;
-       [ 200, [ 'Content-Type' => 'text/html' ],
+       [ 200, [ 'Content-Type' => 'text/html; charset=UTF-8' ],
                [ PublicInbox::View->as_html(Email::MIME->new($$x), $pfx) ] ];
 }