代码：

driver.switch_to.alert.accept()

报错：

Exception:

org.openqa.selenium.UnsupportedCommandException: Invalid Command Method - Request => {"headers":{...},"httpVersion":"1.1","method":"GET","url":"/alert_text","urlParsed":{...},"urlOriginal":"/session/13ddee20-110f-11e3-af52-a75f21929065/alert_text"}

在网上找了很多种方法，一直无解；

https://github.com/detro/ghostdriver/issues/20

论坛讨论详情；

Phantomjs + Alert 交互时Enter键输入无效【已知问题，无解】