问Django只在硬刷新(shift +刷新)之后才加载正确的页面，因为服务工作人员没有每次刷新都使缓存无效。

EN

        {% if user.is_authenticated %}
            <a href="{% url 'login-signout' %}" id="account-link">
                {% if user.username %}
                    {{user.username | capfirst }}
                {% elif user.first_name %}
                    {{user.first_name | capfirst }}
                {% else %}
                    Account
                {% endif %}
            </a>
        {% else %}
            <a href="{% url 'login-signup' %}" id="account-link">
                Login
            </a>
        {% endif %}

var staticCacheName = "django-pwa-v" + new Date().getTime();

// caches on install
self.oninstall = function (evt) {
    evt.waitUntil(caches.open(staticCacheName).then(function (cache) {
        return Promise.all(['/', 'main/home.html'].map(function (url) {
            return fetch(new Request(url, { redirect: 'manual' })).then(function (res) {
                return cache.put(url, res);
            });
        }));
    }));
};

// Clear cache on activate
self.addEventListener('activate', event => {
    event.waitUntil(
        caches.keys().then(cacheNames => {
            return Promise.all(
                cacheNames
                    .filter(cacheName => (cacheName.startsWith("django-pwa-")))
                    .filter(cacheName => (cacheName !== staticCacheName))
                    .map(cacheName => caches.delete(cacheName))
            );
        })
    );
});

// serve from cache
self.onfetch = function (evt) {
    var url = new URL(evt.request.url);
    if (url.pathname != '/' && url.pathname != 'main/home.html') return;
    evt.respondWith(caches.match(evt.request, { cacheName: staticCacheName }));
};