When user makes payment through Spartan, Payment Gateway presents them with the following message:
The connection is blocked because it was initiated by a public page to connect to devices or servers on your private network. Reload this page to allow the connection.

Resolution: Disable local-network-access-check flag in chrome. 


Steps to Disable the Flag

  1. Open Google Chrome.

  2. In the address bar, enter or copy&paste the following:

    chrome://flags/#local-network-access-check
    
  3. Press Enter.

  4. Locate “Local network access check.”

  5. From the dropdown, select Disabled.

  6. Click Relaunch at the bottom-right corner of Chrome to apply changes.