You said you put these lines, but where and how do I put this in my html?
I used those below, but they didn't work in all browsers
<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate">
<meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="Expires" content="0">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">