使用Selenium FirefoxDriver在Google搜索上禁用样式 [英] Disable styling on Google Search with Selenium FirefoxDriver
问题描述
以下代码禁用加载有Selenium Firefox Webdriver的页面上的样式表和图像:
The following code disables stylesheets and images on a page loaded with Selenium Firefox webdriver:
from selenium import webdriver
firefox_profile = webdriver.FirefoxProfile()
firefox_profile.set_preference('permissions.default.stylesheet', 2)
firefox_profile.set_preference('permissions.default.image', 2)
driver = webdriver.Firefox(firefox_profile)
driver.get('http://www.stackoverflow.com/')
driver.close()
它在 stackoverflow.com ， facebook.com ， yahoo.com 上可以正常使用...但是有趣的是，在Google搜索中无法使用;只有Google徽标消失了，样式表仍然保留.
It works fine with stackoverflow.com, facebook.com, yahoo.com... but interestingly doesn't with Google Search; only the Google logo disappears and its stylesheet remains in place.
如果尝试使用以下链接http://google.com/search?q=nelson+mandela，您将获得:
If you try with the following link http://google.com/search?q=nelson+mandela, you will get:
预期结果应如下所示(无样式表+无图片):
Whereas the expected result should look like this (no stylesheet + no picture):
- 发生了什么事?
- 我该如何解决?
推荐答案
Google徽标来自CSS，其中图片作为数据嵌入到HTML中(img src ="data:image/jpeg; base64，.. ..)代码禁止加载不是此类来源的远程图像
The google logo come form the css, where the pictures are embedded in the HTML as data (img src="data:image/jpeg;base64, ....) the code disable the loading of remote images not this type of sources
-
permissions.default.stylesheet:禁用任何格式
permissions.default.stylesheet: disable any formatting
permissions.default.image:禁用任何图像和CSS背景图像
permissions.default.image: disable any image and css background-image
如果图像是作为base64编码嵌入到页面中的，则不会被这些权限阻止，因为这是HTML代码的一部分 (请参见 http://en.wikipedia.org/wiki/Data_URI_scheme )
if the image is embedded into the page as base64 encoded is not blocked by these permissions because is part of the HTML code (see http://en.wikipedia.org/wiki/Data_URI_scheme)
要禁用更多格式，您应该添加:
to disable more formatting you should add:
- firefox_profile.set_preference("permissions.default.script"，2);
- firefox_profile.set_preference("javascript.enabled"，False);
这篇关于使用Selenium FirefoxDriver在Google搜索上禁用样式的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
