The pageshow event is sent to a Window when the browser displays the window's document due to navigation.

The legacy PerformanceNavigation.type read-only property returns an unsigned short containing a constant describing how the navigation to this page was done. Possible values are:

Свойство History.state возвращает значение последнего состояния стека истории (history stack). Этим способом можно проверить состояние не дожидаясь события 

Requirements AMP Theme AMP PHP Library Token Ctools PHP version 5.5.+ Introduction The AMP module is designed to convert Drupal pages into pages that comply with the AMP standard. Initially only node pages will be converted. Other kinds of pages will be enabled at a later time. When the AMP module is installed, AMP can be enabled for any node type. At that point, AMP content becomes available on URLs such as node/1?amp or node/article-title?amp. There are also special AMP formatters for text, image, and video fields.

Views Send enables you to execute personalized mass mailing from a View. Each row in the View generates one e-mail. The fields in the View can be used in the subject and mail body - through tokens - enabling easy personalized e-mails. The recipients (mail address and name) are obviously also take from the view.