Works in codepen, Not on localhostEnsure CORS settings and protocols are properly configured for API fetch requests in local testing environments.Check console for potential error messages indicating fetch failures or network issues.
Facts About the Differences Between localhost, 127.0.0.1, and host.docker.internallocalhost, 127.0.0.1, and host.docker.internal are critical for networking in web development and containers.
Chrome, Firefox, Safari patch 0.0.0.0 security holeA major security flaw named 0.0.0.0 Day is present in various web browsers on macOS and Linux, allowing unauthorized access to local services.