html - automatic redirection to https?

Question

if i use:

<meta http-equiv="REFRESH" content="0;url=https://www.the-domain-you-want-to-redirect-to.com/index.html">

in the html code then it will endlessly loop and refresh the https page.

How can i redirect the users to https? [regarding one index.html file]

What do i need to put in the html code of that "index.html" to redirect them, if they use only "http"?

Thanks

Answer 1

var loc = window.location.href+'';
if (loc.indexOf('http://')==0){
    window.location.href = loc.replace('http://','https://');
}

maybe? as long as you don't mind a small javascript dependency.