Click

Clicks on a WebElement. In case the click causes a new page to load, the execution of this action will attempt to block until the page has loaded (depending on various circumstances, it will not block, however). In this case, all existing WebElements referring to the previous page will become invalid, because the page is no longer available.

In case the click causes a new page to load via an event, the action will not block. In this case, you need to determine on your own, when the page has reloaded or simply wait for a fixed amount of time until you proceed with further execution.