http: log response_write errors

Application-supplied callbacks may error out, try to log them
so the PSGI app developer can figure out what went wrong.

diff --git a/lib/PublicInbox/HTTP.pm b/lib/PublicInbox/HTTP.pm
index 1346901ad52300fd4b9985c18ba912502ce0f649..a6ec1d0d7388540e2ace1a90ae16751f641297aa 100644 (file)
--- a/lib/PublicInbox/HTTP.pm
+++ b/lib/PublicInbox/HTTP.pm
@@ -174,7 +174,10 @@ sub app_dispatch {
                        response_write($self, $env, $res);
                }
        };
-       $self->close if $@;
+       if ($@) {
+               err($self, "response_write error: $@");
+               $self->close;
+       }
 }
 
 sub response_header_write {