[Local service function] generates URL
[STM32F401RE]
| I2C
v
[ST25](())[Chrome/Android] ----- HTTPS ----- [webapp.js]
+ server.key
+ sever.cert
HTTPS is MUST to prevent fraud attacks.
Refer to the following link to run express.js over HTTPS: https://timonweb.com/posts/running-expressjs-server-over-https/