How to dismiss a Twitter Bootstrap popover by clicking outside?

Answer

For buttons containing text only:

$('body').on('click', function (e) {
    //did not click a popover toggle or popover
    if ($(e.target).data('toggle') !== 'popover'
        && $(e.target).parents('.popover.in').length === 0) { 
        $('[data-toggle="popover"]').popover('hide');
    }
});

For buttons containing icons use:

$('body').on('click', function (e) {
        //did not click a popover toggle, or icon in popover toggle, or popover
        if ($(e.target).data('toggle') !== 'popover'
            && $(e.target).parents('[data-toggle="popover"]').length === 0
            && $(e.target).parents('.popover.in').length === 0) { 
            $('[data-toggle="popover"]').popover('hide');
        }
    });

For JS Generated Popovers Use '[data-original-title]' in place of '[data-toggle="popover"]'

Caveat: The solution above allows multiple popovers to be open at once.

One popover at a time please:

Update: Bootstrap 3.0.x, see code or fiddle

$('body').on('click', function (e) {
    $('[data-toggle="popover"]').each(function () {
        //the 'is' for buttons that trigger popups
        //the 'has' for icons within a button that triggers a popup
        if (!$(this).is(e.target) && $(this).has(e.target).length === 0 && $('.popover').has(e.target).length === 0) {
            $(this).popover('hide');
        }
    });
});