Empty path parts not being preserved about oauth2_proxy HOT 8 CLOSED

$ ./google_auth_proxy -version
google_auth_proxy v1.1.1 (built with go1.4.2)
$ ./google_auth_proxy -config oauth.conf
2015/05/21 14:10:45 mapping path "/" => upstream "http://127.0.0.1:8080"
2015/05/21 14:10:45 OauthProxy configured for [APPID].apps.googleusercontent.com
2015/05/21 14:10:45 Warning: cookie-https-only setting is deprecated and will be removed in a future version. use cookie-secure
2015/05/21 14:10:45 Cookie settings: secure (https):false httponly:true expiry:168h0m0s domain:trywildcard.com
2015/05/21 14:10:45 listening on 0.0.0.0:4180

 nc -lk 8080 < pipe | tee proxy.log | nc localhost 15672 > pipe

curl -u guest:guest -Lv -H "Cookie: _oauthproxy=[MYCOOKIE]" localhost:4180/api/queues/%2F/amq.queue
* Adding handle: conn: 0x7ffb89804000
* Adding handle: send: 0
* Adding handle: recv: 0
* Curl_addHandleToPipeline: length: 1
* - Conn 0 (0x7ffb89804000) send_pipe: 1, recv_pipe: 0
* About to connect() to localhost port 4180 (#0)
*   Trying ::1...
* Connected to localhost (::1) port 4180 (#0)
* Server auth using Basic with user 'guest'
> GET /api/queues/%2F/amq.queue HTTP/1.1
> Authorization: Basic Z3Vlc3Q6Z3Vlc3Q=
> User-Agent: curl/7.30.0
> Host: localhost:4180
> Accept: */*
> Cookie: _oauthproxy=[MYCOOKIE]
>
< HTTP/1.1 301 Moved Permanently
< Location: /api/queues/amq.queue
< Date: Thu, 21 May 2015 18:11:15 GMT
< Content-Length: 56
< Content-Type: text/html; charset=utf-8
<
* Ignoring the response-body
* Connection #0 to host localhost left intact
* Issue another request to this URL: 'HTTP://localhost:4180/api/queues/amq.queue'
* Found bundle for host localhost: 0x7ffb894154a0
* Re-using existing connection! (#0) with host localhost
* Connected to localhost (::1) port 4180 (#0)
* Adding handle: conn: 0x7ffb89804000
* Adding handle: send: 0
* Adding handle: recv: 0
* Curl_addHandleToPipeline: length: 1
* - Conn 0 (0x7ffb89804000) send_pipe: 1, recv_pipe: 0
* Server auth using Basic with user 'guest'
> GET /api/queues/amq.queue HTTP/1.1
> Authorization: Basic Z3Vlc3Q6Z3Vlc3Q=
> User-Agent: curl/7.30.0
> Host: localhost:4180
> Accept: */*
> Cookie: _oauthproxy=[MYCOOKIE]
>
< HTTP/1.1 404 Not Found
< Content-Length: 55
< Content-Type: application/json
< Date: Thu, 21 May 2015 18:11:15 GMT
* Server MochiWeb/1.1 WebMachine/1.10.0 (never breaks eye contact) is not blacklisted
< Server: MochiWeb/1.1 WebMachine/1.10.0 (never breaks eye contact)
<
* Connection #0 to host localhost left intact
{"error":"Object Not Found","reason":"\"Not Found\"\n"}

::1 - [email protected] [21/May/2015:14:11:15 -0400] localhost:4180 GET - "/api/queues///amq.queue" HTTP/1.1 "curl/7.30.0" 301 56 0.000
::1 - [email protected] [21/May/2015:14:11:15 -0400] localhost:4180 GET 127.0.0.1:8080 "/api/queues/amq.queue" HTTP/1.1 "curl/7.30.0" 404 55 0.013

GET /api/queues/amq.queue HTTP/1.1
Host: localhost:4180
User-Agent: curl/7.30.0
Accept: */*
Authorization: Basic Z3Vlc3Q6Z3Vlc3Q=
Cookie: _oauthproxy=[MYCOOKIE]
X-Forwarded-For: ::1
Accept-Encoding: gzip