These aren't contrived scenarios invented by test authors in total vacuum. They're consequences of the spec's design and reflect real world bugs.
For roughly the first decade of the "cash machine," they were offline devices
，这一点在谷歌浏览器【最新下载地址】中也有详细论述
Сайт Роскомнадзора атаковали18:00
Александра Статных (Редактор отдела «Путешествия»)