Test the --proxy function of Ember CLI - https://github.com/ember-cli/ember-cli/issues/3432#issuecomment-103205057

ember_cli_proxy_test.sh

# Set up a listener
nc -l 1234

# spawn ember-cli that proxies to the listener
ember s --proxy http://localhost:1234

# curl "as ajax"
curl -H 'X-Requested-With: XMLHttpRequest' -H 'Accept: application/json' localhost:4200/api/foo

#result in the listener tab:
$ nc -l 1234
GET /api/foo HTTP/1.1
accept: application/json
x-requested-with: XMLHttpRequest
referer: 
host: localhost:1234
user-agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)
connection: close