[jQuery] How do I cache

[jQuery] How do I cache


I would like to have a registration form cached for 1 year public and
private.
How do i go about it.
Thats what I tried and register.html was not cached.
jq.ajax({
        type: "POST",
url: "http://www.example.com/register.html",
dataType: "html",
        cache: true,
success: function(response) {}
});
=================================
content of register.html
<div>
<form name="registerForm" method="post" onsubmit="return false;"
autocomplete="off">
<input type="text" name="username" id="username" value=""/>
<input type="password" name="pass" id="pass" value=""/>
<input type="text" name="email" id="email" value=""/>
</form>
</div>