使用无头浏览器进行调试 [英] Debugging with headless browser
问题描述
我有一个 WebDriver
testsuite,当我在普通和无头浏览器中执行它时,它运行不同。当我在无头模式下执行它时,找不到一个元素,但是当我在正常模式下使用相同的代码,相同的驱动程序时,会发现该元素。
我使用此标志设置无头模式:
I have a WebDriver
testsuite, which operates different when I execute it in normal and headless browser. There is an element which is not found when I execute it in headless mode, but found when I use the same code, same driver in normal mode.
I use this flag to set headless mode:
chromeOptions.addArguments("--headless");
ChromeDriver 2.31
和 WebDriver 3.5.2
正在使用中。我该怎么调试呢?
There is ChromeDriver 2.31
and WebDriver 3.5.2
in use. How could I debug this?
推荐答案
有两种调试方法。您可以获取页面源并检查有什么不同。
There are two ways to debug. You can get Page Source and check what is different.
现在,当您使用Selenium启动浏览器时,它正在使用调试会话来自动化Chrome。所以你不能用你的网站做远程调试。
Now when you launch a browser using Selenium, it is using the Debugging session to automate chrome. So you can't do a remote debugger to your website using this.
你需要手动启动chrome。
You need to launch chrome manually.
chrome --headless --remote-debugging-port=9222 --disable-gpu http://tarunlalwani.com
现在打开另一个chrome并通过转到 http://127.0.0.1:9222
调试网站,检查现场。
Now in open another chrome and debug the site by going to http://127.0.0.1:9222
and inspect the site.
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