An SSL error when npm run dev

Question

➜  npm run dev
...
 Starting dev server...
 DONE  Compiled successfully in 2768ms
 11:30:11 AM
 Listening at http://localhost:8080

I run the npm run dev command，successful , but browser console put a error:

Failed to load resource: An SSL error has occurred and a secure connection to the server cannot be made. https://localhost:8080/app.js

Why load the app.js by https ?

my npm version: 5.5.1

Answer 1

solve it ! comment this meta in html: <meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests" />