Chrome://flags/#allow-insecure-localhost › <SAFE>

The relevant setting will be highlighted at the top of the list. Change the dropdown menu from to Enabled .

// In security_manager.cc bool IsInsecureLocalhostAllowed() return flags::g_allow_insecure_localhost.GetValue();

The flag bridges that gap—without making your global browsing unsafe. chrome://flags/#allow-insecure-localhost

chrome://flags/#allow-insecure-localhost

Enabling the flag tells Chrome to relax its strict security requirements specifically for the localhost loopback interface. The relevant setting will be highlighted at the

Set up a local HTTPS certificate using:

Just remember to when you’re done testing, or at least be aware it’s active. | | Still getting insecure warnings | Double-check

Mastering chrome://flags/#allow-insecure-localhost : A Guide for Web Developers

| Problem | Solution | |---------|----------| | Flag doesn’t show up | Ensure Chrome is up to date (version 80+). | | Still getting insecure warnings | Double-check you’re accessing http://localhost (not 127.0.0.1 or 0.0.0.0 ). | | Flag resets after browser update | Chrome may disable flags for security. Re-enable it. |