How to avoid sending input fields which are hidden by display:none to a server?

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Setting a form element to disabled will stop it going to the server, e.g.:

<input disabled="disabled" type="text" name="test"/>

In javascript it would mean something like this:

var inputs = document.getElementsByTagName('input');
for(var i = 0;i < inputs.length; i++) {
    if(inputs[i].style.display == 'none') {
        inputs[i].disabled = true;
    }
}
document.forms[0].submit();

In jQuery:

   $('form > input:hidden').attr("disabled",true);
   $('form').submit();

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