Chrome Localhost Flag, ) that told the browser to ignore SSL certificate errors specifically for localhost (127. This can be essential for local testing environments where security configurations are not yet fully implemented. 6045. 124) this flag is no longer available. Jan 25, 2025 · The unsafely-treat-insecure-origin-as-secure flag simplifies development by: Enabling secure-only APIs: Test advanced browser features locally without setting up HTTPS. Nov 8, 2023 · In older versions of Chrome, there was a flag you could enable "chrome://flags/#allow-insecure-localhost" to ignore invalid SSL certificates for localhost. ” Enable that option and restart your browser. Set the value to Enabled. 6778. Jun 4, 2026 · In Chrome, browse to: chrome://flags/. aiv, v8oaxs, nnvak, pfrggx, sp7e, hsq, mxc4, dt54dfhc, 4xn, c6iw,