How do I enable CORS on Service endpoint? I tried to call a Drupal service endpoint, exposed by the Services module, using ionic which is built on Cordova.  I ran 'ionic serve', so it wasn't serving from the file system but had an actual localhost and port url.  I then installed the CORS module and I'm a bit confused by what I need to include.
My endpoint is http://example.com/api/v1/
It is a REST based server and I only enabled JSON.
       I want to get data from the site to load into a mobile app - such as an Android - a hybrid app (meaning coded in HTML/JS and packaged with ionic).  

The documentation is a bit confusing to me.  It reads


  "A list of paths and corresponding domains to enable for CORS. Multiple entries should be separated by a comma. Enter one value per line separated by a pipe, in this order:"
  
  Internal path
  
  Access-Control-Allow-Origin. Use  to echo back the Origin header.
  
  Access-Control-Allow-Methods
  
  Access-Control-Allow-Headers
  
  Access-Control-Allow-Credentials
  
  Examples:
  
  *|http://example.com
  
  api|http://example.com:8080 http://example.com
  
  api/*|&lt;mirror&gt;,https://example.com
  
  api/*|&lt;mirror&gt;|POST|Content-Type,Authorization|true


Do I include Access-Control-Allow-Origin|api/*|http://example.com, or is the domain supposed to represent the domain that can call my service? 

Maybe I just need Internal Path and not anything else. None of the examples uses Access-Control-All-*. I don't plan to do more than GET requests at this time.
If your endpoint is "your.host/api/v1/" this minimal CORS module configuration should work for anonymous GET requests:

api/v1/*|&lt;mirror&gt;