This results in the dreaded error screen (NET::ERR_CERT_AUTHORITY_INVALID). While you can manually proceed, Chrome will often mute certain browser APIs or flood the console with security warnings, breaking the development flow.
Enabling the flag tells Chrome to relax its strict security requirements specifically for the localhost loopback interface.
This setting weakens the browser's security model for the loopback interface. While malware is unlikely to serve malicious HTTPS from your own computer, it is best practice to leave this flag set to on machines used for general browsing or in production environments. It is a developer tool, not a permanent browser setting.
By leveraging chrome://flags/#allow-insecure-localhost , you can remove a significant hurdle in your daily development cycle, allowing you to focus on building features rather than fighting browser security warnings.
generate a valid self-signed certificate so you don't have to rely on this flag? AI can make mistakes, so double-check responses Copy Creating a public link... You can now share this thread with others Good response Bad response 9 sites Quick Start - AITable Developer Center To successfully preview a custom widget in the widget panel, you need to lift the browser's security restrictions on loading local... AITable.ai Chrome: allow localhost site even without https certificate Jul 10, 2018 —