Perform the following steps to configure Remote Site Settings for your Community URL:

  1. Go to Setup > in the Quick Find box, search and select the Remote Site Settings.
  2. Click New Remote Site.
  3. Enter a descriptive term for the Remote Site Name.

  4. Enter the URL for the remote site.

    Go to the Sites to get the Site URL. For example, http://commercesite.test.force.com

  5. Click Save.