subrequest headers ignored

[Konstantin Svist]

Подскажите пожалуйста, как такое лечится
Я хочу вытащить хэдеры из lua subrequest. Вроде по документации они 
должны сидеть в res.header, но там я только вижу ["Content-Type"] = 
"application/octet-stream";



location /foo {
   content_by_lua 'local res = ngx.location.capture("/bar"); 
ngx.print(res.header["Foo"])';
}
location /bar {
   echo "baz";
   add_header "Foo" "Bar";
}



$ curl -v 'http://localhost/foo'
* About to connect() to localhost port 80 (#0)
*   Trying 127.0.0.1... connected
* Connected to localhost (127.0.0.1) port 80 (#0)
 > GET /foo HTTP/1.1
 > User-Agent: curl/7.21.3-DEV (x86_64-unknown-linux-gnu) 
libcurl/7.21.3-DEV OpenSSL/1.0.0 zlib/1.2.5 libssh2/1.2.4
 > Host: localhost
 > Accept: */*
 >
< HTTP/1.1 200 OK
< Server:
< Date: Tue, 22 Nov 2011 02:18:18 GMT
< Content-Type: application/octet-stream
< Transfer-Encoding: chunked
< Connection: keep-alive
<
* Connection #0 to host localhost left intact
* Closing connection #0
nil#



$ curl -v 'http://localhost/bar'
* About to connect() to localhost port 80 (#0)
*   Trying 127.0.0.1... connected
* Connected to localhost (127.0.0.1) port 80 (#0)
 > GET /bar HTTP/1.1
 > User-Agent: curl/7.21.3-DEV (x86_64-unknown-linux-gnu) 
libcurl/7.21.3-DEV OpenSSL/1.0.0 zlib/1.2.5 libssh2/1.2.4
 > Host: localhost
 > Accept: */*
 >
< HTTP/1.1 200 OK
< Server:
< Date: Tue, 22 Nov 2011 02:17:38 GMT
< Content-Type: application/octet-stream
< Transfer-Encoding: chunked
< Connection: keep-alive
< Foo: Bar
<
baz
* Connection #0 to host localhost left intact
* Closing connection #0