I just knew that “s” means “Safe,” and the user should never enter sensitive information on a website that uses only http. But I really want to know what these two protocols affect my programming, for example:
How "https" appeared on some website, and some do not (or maybe how they turn on and off from this function, which I don’t know). Does this mean that I have to register somewhere?
I thought to myself that communication in http is not encrypted, while some encryption can take place in https, is this correct?
And since the encryption process (if any) is performed by the browser, as a result, my server-side code has nothing to do with "http" or "https", is this correct?
Is there a way to force the user to use only https?
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