个案$ .ajaxSetup调用

I'm making a couple $.post calls in my script, and I'd like to use $.ajaxSetup to handle cache control.

function function1() 
$.ajaxSetup({
    type: 'POST',
    headers: { "cache-control": "no-cache", "pragma-cache": "no-cache" }
});
$.post('getLists.php', {user: authUser, token: authToken}, function(data){
    $('nav a[class!=btnNewList]').remove();
    $.each(data.objects, function(index, element){
        $('nav').append('<a href="#" data-list-id="'+element.id+'">'+element.title+'</a>');
    });
    $('nav').children('a:first-child').next('a').addClass('selected');

    getClipsForList($('nav').children('a:first-child').next('a').attr('data-list-id'));
}, 'json');


function function2(){
$.ajaxSetup({
    type: 'POST',
    headers: { "cache-control": "public", "pragma-cache": "public" }
});
$.post('getClips.php', {user: authUser, token: authToken}, function(data){
    spinner.stop();
    $.each(data.objects, function(index, element){
        if(element.list == '/api/lists/'+id+'/'){
            $('#clips ul').append('<li data-url="'+element.url+'">'+truncate(element.title, 100)+'</li>');
        }
    });
},'json');
}

I'm building a mobile web app, and I noticed it was caching my JSON responses, so I did some research and found the $.ajaxSetup solution. It worked great, but it seems now, regardless of what I set the cache control property to, it's always caching now. I'd like to cache only certain $.post calls. Any way to do this?

I've tried using $.ajax instead of $.post for the function I want cached data and setting the global property to false, but it still won't cache.

This was fixed by simply using $.ajax for each call and explicity settings the headers on a per call basis, rather than trying to use a global setup with $.post.