title: How to request for the crumb issuer for Jenkins
body: <p>I want to use the Jenkins Remote API, and I am looking for safe solution. I came across <code>Prevent Cross Site Request Forgery exploits</code> and I want to use it, but I read somewhere that you have to make a crumb request.</p>
  
  <p>How do I get a crumb request in order to get the API working?</p>
  
  <p>I found this <code>https://github.com/entagen/jenkins-build-per-branch/pull/20</code>, but still I don't know how to fix it.</p>
  
  <p>My Jenkins version is 1.50.x.</p>
  
  <p><em><a href="https://issues.jenkins-ci.org/browse/JENKINS-10374" rel="noreferrer">Authenticated remote API request responds with 403 when using POST request</a></em></p>