Linux服务器如何调用并执行window.performance.timing接口？

Question

Linux服务器如何调用并执行window.performance.timing接口？

代码如下：

url = urllink 
driver = webdriver.PhantomJS() 
driver.get(url)
navigationStart =driver.execute_script("returnwindow.performance.timing.navigationStart") 
loadEventEnd =driver.execute_script("return window.performance.timing.loadEventEnd")
backendPerformance = loadEventEnd - navigationStart print
backendPerformance / 1000

部署在Linux服务器后运行，结果如下

请问如何调用实现？

Answer 1

你这个报错明显是拼写错误