There are cases where you want HTTPS to speak to the development at hand. I looked up how to do it. During local development, webpack-dev-server was also HTTP, so it was an afterthought. (I was too quick to assume that the error was due to another cause.)

memo

$ openssl genrsa -aes128 1024 > server.key $ openssl req -new -key server.key > server.csr CSR: Certificate Signing Request $ openssl x509 -in server.csr -days 365 -req -signkey server.key > server.crt CRT: Certificate $ flask run --cert server.crt --key server.key :

 * Serving Flask app "server" (lazy loading)
 * Environment: development
 * Debug mode: on
 * Running on https://127.0.0.1:5000/ (Press CTRL+C to quit)
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: xxx-xxx-xxx
Enter PEM pass phrase:

I can make it HTTPS with this, but it seems better to make it without passphrase, because I’m asked for passphrase every time I auto-restart after editing the code, I’ll try it next time I need it.

memo Create error-free self certification authority & server certificates in Chrome - run and climb

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