Is this a bug report?

Yes

Can you also reproduce the problem with npm 4.x?

Yes

Which terms did you search for in User Guide?

service worker

Environment

1. node -v: v8.6.0
2. npm -v:
3. yarn --version (if you use Yarn): 1.3.2
4. npm ls react-scripts (if you haven’t ejected): react-scripts@1.0.17

Then, specify:

1. Operating system: Mac
2. Browser and version (if relevant): Chrome v63

Steps to Reproduce

https://redirect.netlify.com/
The first link works, but not the second. Why?

import React from "react"; const App = () => ( <div> <p> <a href="http://redirect.netlify.com/manifest.json"> http://redirect.netlify.com/manifest.json </a> </p> <p> <a href="https://redirect.netlify.com/manifest.json"> https://redirect.netlify.com/manifest.json </a> </p> </div> ); export default App; 

Service worker code: https://github.com/facebookincubator/create-react-app/blob/master/packages/react-scripts/template/src/registerServiceWorker.js