为什么我不能点击带有铬的空白区域？

Question

我想学习如何使用selenium点击页面上的空白区域。通常建议的方法是单击html元素。此方法使用chrome失败，但不能使用firefox。为什么会发生这种情况？如何解决？

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;

public class Temp {
    private static final WebDriver browser = new ChromeDriver();

    private static String url = "https://www.google.com/";

    public static void main(String[] args) {
        browser.get(url);
        browser.findElement(By.tagName("html")).click();
    }

}

例外：

Starting ChromeDriver (v2.9.248315) on port 15072
Exception in thread "main" org.openqa.selenium.WebDriverException: unknown error: Failed to execute 'getComputedStyle' on 'Window': parameter 1 is not of type 'Element'.
  (Session info: chrome=52.0.2743.116)
  (Driver info: chromedriver=2.9.248315,platform=Windows NT 6.1 SP1 x86_64) (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 334 milliseconds
Session ID: 69ce4de350c6ade8abcbcd0b1b2093f6
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:408)
    at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:206)
    at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:158)
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:678)
    at org.openqa.selenium.remote.RemoteWebElement.execute(RemoteWebElement.java:327)
    at org.openqa.selenium.remote.RemoteWebElement.click(RemoteWebElement.java:85)
    at src.Temp.main(Temp.java:14)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)