Getting CORS error to communicate looker with angular application

Tried to call the looker api to get Dashboard from angular application by adding token value in header for authorization. By doing this, coming with  “No 'Access-Control-Allow-Origin' header is present on the requested resource”. 
The methods i followed to resolve the Errors are listed below but not worked for me:

  1. proxy_setting
  2. Creation of node server and tried with the same. still didnt worked.

Please help!!

0 0 331