Salesforce.com Rest Authentication Cors Issue

I am doing some integration with the salesforce.com api but I have hit a roadblock. Using some javascript I want to 1. Post a username/password to get authentication token EG: h

Solution 1:

The Salesforce REST API doesn't yet support CORS on all request endpoints. So maybe you are using an endpoint that doesn't add the CORS headers? In the meantime you can use a proxy: https://www.jamesward.com/2014/06/23/cross-origin-resource-sharing-cors-for-salesforce-com