lib/PublicInbox/HTTP.pm | 7 +++++++

diff --git a/lib/PublicInbox/HTTP.pm b/lib/PublicInbox/HTTP.pm
index 0675f6a68b35ee1fc0a2424a43ab510a6bfe088f..288831146da11f4a1d329ca991f58f79565a824a 100644
--- a/lib/PublicInbox/HTTP.pm
+++ b/lib/PublicInbox/HTTP.pm
@@ -371,6 +371,13 @@
 sub event_hup { $_[0]->close }
 sub event_err { $_[0]->close }
 
+sub write ($$) : method {
+	my PublicInbox::HTTP $self = $_[0];
+	return 1 if (defined($_[1]) && ref($_[1]) eq '' && $_[1] eq '');
+
+	$self->SUPER::write($_[1]);
+}
+
 # for graceful shutdown in PublicInbox::Daemon:
 sub busy () {
 	my ($self) = @_;