gistfile1.txt

$ git ls-remote --tags --heads https://github.com/ember-cli/ember-cli-test-loader.git
$ git ls-remote --tags --heads git://github.com/ember-cli/ember-cli-test-loader.git
b362a8e3506cbfce9bbd52e1821449f4dafe43a4        refs/heads/master
929777f8b5c60db3120712c7328f5debdf74a0cd        refs/tags/0.0.1
055d50f770ad333e7ead10ecb04605f951e2435b        refs/tags/0.0.2
9defa2c59df38dcc334d6c1cc266075c04c2a4f6        refs/tags/0.0.3
a925b8fc428829ea3599e66eb0e6353726426356        refs/tags/0.0.4
c6006a11515c756d115bb5209103a22c2e9554a0        refs/tags/v0.1.0
91d09e9d3f0c4b58aacaa2034d92e2352689eea3        refs/tags/v0.1.1
78cac621530ae17e6fb1e0bcca8d90f5796e5b6a        refs/tags/v0.1.2
765c81a0537eac6ffa8d0b51aa2a7e0c7b451576        refs/tags/v0.1.3
6a0922054bc81765909c4113ce71a8e390db673f        refs/tags/v0.2.0
3348d801089279296c38f31ae14d9c4d115ce154        refs/tags/v0.2.1
5c184b79b279ba0438bce0dd30b696efbc030a64        refs/tags/v0.2.2
25635e8601db3077b933217e12147c5280fcf262        refs/tags/v1.0.0
b362a8e3506cbfce9bbd52e1821449f4dafe43a4        refs/tags/v1.1.0

gistfile2.txt

$ GIT_CURL_VERBOSE=1 GIT_TRACE=1 git ls-remote --tags --heads https://github.com/ember-cli/ember-cli-test-loader.git
trace: built-in: git 'ls-remote' '--tags' '--heads' 'https://github.com/ember-cli/ember-cli-test-loader.git'
trace: run_command: 'git-remote-https' 'https://github.com/ember-cli/ember-cli-test-loader.git' 'https://github.com/ember-cli/ember-cli-test-loader.git'
* Couldn't find host github.com in the .netrc file; using defaults
* About to connect() to github.com port 443 (#0)
*   Trying 192.30.253.112... * Connected to github.com (192.30.253.112) port 443 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
*   CAfile: /etc/pki/tls/certs/ca-bundle.crt
  CApath: none
* SSL connection using TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
* Server certificate:
*       subject: CN=github.com,O="GitHub, Inc.",L=San Francisco,ST=California,C=US,postalCode=94107,STREET="88 Colin P Kelly, Jr Street",serialNumber=5157550,incorporationState=Delaware,incorporationCountry=US,businessCategory=Private Organization
*       start date: Mar 10 00:00:00 2016 GMT
*       expire date: May 17 12:00:00 2018 GMT
*       common name: github.com
*       issuer: CN=DigiCert SHA2 Extended Validation Server CA,OU=www.digicert.com,O=DigiCert Inc,C=US
> GET /ember-cli/ember-cli-test-loader.git/info/refs?service=git-upload-pack HTTP/1.1
User-Agent: git/1.7.1
Host: github.com
Accept: */*
Pragma: no-cache

< HTTP/1.1 200 OK
< Server: GitHub Babel 2.0
< Content-Type: application/x-git-upload-pack-advertisement
< Transfer-Encoding: chunked
< Expires: Fri, 01 Jan 1980 00:00:00 GMT
< Pragma: no-cache
< Cache-Control: no-cache, max-age=0, must-revalidate
< Vary: Accept-Encoding
< X-GitHub-Request-Id: 32CA89DB:6CA8:3176F50:5799397F
< X-Frame-Options: DENY
<
* Expire cleared
* Connection #0 to host github.com left intact