Si vous avez créé une application en utilisantcreate-react-appet vous l'exécutez localement sur votre ordinateur, par défaut, il est servi en utilisant le protocole HTTP.
Toute application exécutée en production sera servie à l'aide de HTTPS, la version sécurisée de HTTP.
Vous obtiendrez le HTTPS presque sans effort dans la plupart des cas, surtout si vous utilisez une plate-forme moderne comme Netlify ou Vercel pour servir votre application.
Mais localement ... c'est un peu plus compliqué que nous aimerions.
Voyons comment vous pouvez le faire!
Comme vous le savez, lecreate-react-appl'application est exécutée en utilisantnpm run start, ou simplementnpm start, parce que dans lepackage.jsondes dossiersscriptssection, nous avons cette ligne:
"start": "react-scripts start"change that to:
"start": "HTTPS=true react-scripts start"This sets the HTTPS environment variable to the true value.
That’s not enough, though.
Now we also need to generate a local certificate. This step will work fine for any app, not just create-react-app apps, but I will include it in this post, as a reference.
Note: I ran these commands on macOS. Linux should work in the same way. I don’t guarantee for Windows.
In the project root folder, run:
openssl req -x509 -newkey rsa:2048 -keyout keytmp.pem -out cert.pem -days 365Now run:
openssl rsa -in keytmp.pem -out key.pemYou should now have the files cert.pem and key.pem in the folder.
Now change the start script in the package.json file to:
"start": "export HTTPS=true&&SSL_CRT_FILE=cert.pem&&SSL_KEY_FILE=key.pem react-scripts start",If you ran npm run start, and access https://localhost:3000 (or the port your app uses, if different - in my case it’s 3008), you should see this warning message:
To fix it on macOS, follow the instructions of my tutorial how to install a local certificate in macOS.
Once you do, you will be able to see the app without problems, served using SSL:
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