new file mode 100644
--- /dev/null
+++ b/proxy_ssl_keepalive.t
@@ -0,0 +1,106 @@
+#!/usr/bin/perl
+
+# (C) Andrey Zelenkov
+# (C) Nginx, Inc.
+
+# Tests for proxy with keepalive to ssl backend.
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+
+BEGIN { use FindBin; chdir($FindBin::Bin); }
+
+use lib 'lib';
+use Test::Nginx;
+
+###############################################################################
+
+select STDERR; $| = 1;
+select STDOUT; $| = 1;
+
+eval { require IO::Socket::SSL; };
+plan(skip_all => 'IO::Socket::SSL not installed') if $@;
+
+my $t = Test::Nginx->new()->has(qw/http http_ssl proxy upstream_keepalive/)
+	->has_daemon('openssl')->plan(3)
+	->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+http {
+    %%TEST_GLOBALS_HTTP%%
+
+    upstream u {
+        server 127.0.0.1:8081;
+        keepalive 1;
+    }
+
+    server {
+        listen       127.0.0.1:8080;
+        server_name  localhost;
+
+        proxy_http_version 1.1;
+
+        location / {
+            proxy_pass https://u/;
+            proxy_set_header Connection $args;
+        }
+    }
+
+    server {
+        listen       127.0.0.1:8081 ssl;
+        server_name  localhost;
+
+        ssl_certificate_key localhost.key;
+        ssl_certificate localhost.crt;
+
+        location / {
+            add_header X-Connection $connection;
+        }
+    }
+}
+
+EOF
+
+$t->write_file('openssl.conf', <<EOF);
+[ req ]
+default_bits = 2048
+encrypt_key = no
+distinguished_name = req_distinguished_name
+[ req_distinguished_name ]
+EOF
+
+my $d = $t->testdir();
+
+foreach my $name ('localhost') {
+	system('openssl req -x509 -new '
+		. "-config '$d/openssl.conf' -subj '/CN=$name/' "
+		. "-out '$d/$name.crt' -keyout '$d/$name.key' "
+		. ">>$d/openssl.out 2>&1") == 0
+		or die "Can't create certificate for $name: $!\n";
+}
+
+$t->write_file('index.html', 'SEE-THIS');
+$t->run();
+
+###############################################################################
+
+my ($r, $n);
+
+like($r = http_get('/'), qr/200 OK.*SEE-THIS/ms, 'first');
+$r =~ m/X-Connection: (\d+)/; $n = $1;
+like(http_get('/'), qr/X-Connection: $n[^\d].*SEE-THIS/ms, 'second');
+
+http_get('/?close');
+unlike(http_get('/'), qr/X-Connection: $n[^\d]/, 'close');
+
+###############################################################################