Since this is a standard URI scheme like http:// , file:// , or data:// , here’s a general guide to help you understand and work with it.
Uses system settings by default. Navigate to chrome://settings/system and click Open your computer's proxy settings . Mozilla Firefox: Go to Settings > General > Network Settings . Select Automatic proxy configuration URL . Enter the URL: file:///path/to/your/proxy.pac . Developer Tools (Node.js/npm) proxy-url-file-3A-2F-2F-2F
proxy-url-file:///
When decoded, that becomes: proxy-url-file:/// Since this is a standard URI scheme like