根据http://getbootstrap.com/javascript/#popovers，

<button type="button" class="popover-dismiss" data-toggle="popover" title="Dismissible popover" data-content="Popover Content">Dismissible popover</button>

使用焦点触发器可以在用户下一次单击时取消弹出窗口。

$('.popover-dismiss').popover({
    trigger: 'focus'
})

试试这个，点击外面会隐藏。

$('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');
    }
    });
});

对于任何人寻找一个解决方案，工作与Bootstrap 5和没有jQuery，即使弹出窗口是动态生成(即手动触发):

document.querySelector('body').addEventListener('click', function(e) {
    var in_popover = e.target.closest(".popover");

    if (!in_popover) {
        var popovers = document.querySelectorAll('.popover.show');

        if (popovers[0]) {
            var triggler_selector = `[aria-describedby=${popovers[0].id}]`;

            if (!e.target.closest(triggler_selector)) {
                let the_trigger = document.querySelector(triggler_selector);
                if (the_trigger) {
                    bootstrap.Popover.getInstance(the_trigger).hide();
                }
            }
        }
    }
});

$("body").find('.popover').removeClass('in');

根据http://getbootstrap.com/javascript/#popovers，

<button type="button" class="popover-dismiss" data-toggle="popover" title="Dismissible popover" data-content="Popover Content">Dismissible popover</button>

使用焦点触发器可以在用户下一次单击时取消弹出窗口。

$('.popover-dismiss').popover({
    trigger: 'focus'
})

使用Matt Lockyer的代码，我做了一个简单的重置，所以dom不会被隐藏的元素覆盖。

马特的代码：http://mattlockyer.com/2013/04/08/close-a-twitter-bootstrap-popover-when-clicking-outside/

小提琴:http://jsfiddle.net/mrsmith/Wd2qS/

    $('body').on('click', function (e) {
    //hide popover from dom to prevent covering elements
    $('.popover').css('display', 'none');
    //bring popover back if trigger element is clicked
    $('[data-toggle="popover"]').each(function () {
        if ($(this).is(e.target) && $(this).has(e.target).length === 0 && $('.popover').has(e.target).length === 0) {
            $('.popover').css('display', 'block');
        }
    });
    //hide popover with .popover method
    $('[data-toggle="popover"]').each(function () {
        //the 'is' for buttons that trigger popups
        //the 'has' for icons within a button that triggers a popup
        if (!$(this).is(e.target) && $(this).has(e.target).length === 0 && $('.popover').has(e.target).length === 0) {
            $(this).popover('hide');
        }
    });
});