title: Jenkins doesn't load CSS at HTML published pages
body: <p>I have a Java program that uses Selenium to test web sites.
  However when I run the program in Jenkins it generates a HTML report. When I open the report I get it with out CSS loaded.</p>
  
  <p>To fix this I usually go to Jenkins->Script console and type in the following command:</p>
  
  <p>System.setProperty("hudson.model.DirectoryBrowserSupport.CSP", "")</p>
  
  <p>(As described here: <a href="https://wiki.jenkins.io/display/JENKINS/Configuring+Content+Security+Policy" rel="nofollow noreferrer">https://wiki.jenkins.io/display/JENKINS/Configuring+Content+Security+Policy</a>)</p>
  
  <p>However after some time this rule is gone, so I need to put it into some config file.</p>
  
  <p>My server is a Ubuntu 18.04 server.
  I have installed Jenkins under /var/lib/jenkins
  Here I have a file named config.xml, but I cant see any option on this hudson.model.DirectoryBrowserSupport.CSP.</p>