Представьте: пользователь зашёл на сайт, ресурс уже был в кэше. Но браузер решил проверить, не обновился ли он на сервере. Какой заголовок участвует именно в этом механизме?
Подсказка — в ответе сервера на картинке. Опрос — в следующем посте.
#междусобойчик
BY Библиотека фронтендера | Frontend, JS, JavaScript, React.js, Angular.js, Vue.js
Telegram is a free app and runs on donations. According to a blog on the telegram: We believe in fast and secure messaging that is also 100% free. Pavel Durov, who shares our vision, supplied Telegram with a generous donation, so we have quite enough money for the time being. If Telegram runs out, we will introduce non-essential paid options to support the infrastructure and finance developer salaries. But making profits will never be an end-goal for Telegram.
In recent times, Telegram has gained a lot of popularity because of the controversy over WhatsApp’s new privacy policy. In January 2021, Telegram was the most downloaded app worldwide and crossed 500 million monthly active users. And with so many active users on the app, people might get messages in bulk from a group or a channel that can be a little irritating. So to get rid of the same, you can mute groups, chats, and channels on Telegram just like WhatsApp. You can mute notifications for one hour, eight hours, or two days, or you can disable notifications forever.
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