Navigation Failed Because The Request Was For An Http Url With Https-only Enabled -

// Option C: Just use a relative path if on the same origin fetch('/api/data'); If the browser is trying to access your http:// resource because your server is misconfigured, you can train the browser to never use HTTP again via HTTP Strict Transport Security (HSTS) .

// Option A: Protocol-relative (Uses whatever the parent page uses) fetch('//mybackend.com/api/data'); // Option B: Absolute HTTPS (Forces encryption) fetch('https://mybackend.com/api/data'); // Option C: Just use a relative path

fetch('http://mybackend.com/api/data'); <img src="http://cdn.example.com/logo.png"> Instead of a beautiful UI, you’re greeted by

The “Navigation Failed” Paradox: Debugging HTTP Requests in an HTTPS-Only World Instead of a beautiful UI

We’ve all been there. You click a link, type a URL, or your frontend JavaScript tries to call an API endpoint. Instead of a beautiful UI, you’re greeted by a stark, white page and a confusing console error: “Navigation failed because the request was for an HTTP URL with HTTPS-Only enabled.”