title: python selenium, can't find elements from page_source while can find from browser
body: <p>I try find target element by xpath so that I can click on it. But can't find it when run code, although can find it by right-click option manually on chrome browser. </p>
  
  <p>detail: I am using </p>
  
  <pre><code>driver.get('chrome://settings/clearBrowserData')
  </code></pre>
  
  <p>to get history pop-up from chrome, then wait element by selenium, 
  and next action I try to click it by: </p>
  
  <pre><code>driver.find_element_by_css_selector('* /deep/ #clearBrowsingDataConfirm').click()
  </code></pre>
  
  <p>or by:</p>
  
  <pre><code>driver.find_element_by_xpath(r'//paper-button[@id="clearBrowsingDataConfirm"]').click()
  </code></pre>
  
  <p>both does not work</p>
  
  <p>Could you tell solution by xpath if possible because I am more familiar with it. Or any other way to clear history on chrome, thank</p>