Fixes Jenkins console logs from getting stuck as it force refreshes every 10 seconds, also fixes the inline approve/abort buttons. Click Raw to install on script managers like GreaseMonkey and Tampermonkey.

jenkins_auto_refresh_console_logs.user.js

// ==UserScript==
// @author    Mert Acar
// @name      Refresh console text AND fix approve/abort buttons
// @version   0.1
// @include   *//jenkinsserver001*/job/*/consoleText
// @include   *//jenkinsserver001*/job/*/console
// @icon      https://www.jenkins.io/favicon.ico
// @updateURL https://gist.github.com/M4C4R/34de4736c342fdc98beb7801892b1cc9/raw/bce4d4896eb6fec2453144df46f0f53220954a8b/jenkins_auto_refresh_console_logs.user.js
// ==/UserScript==

// *** START Configuration ***
const refreshSeconds = 10
// *** END Configuration ***

// -------------- Script Itself --------------

setInterval(function () {
  // Check if we are looking at plain logs or formatted
  var isPlainText = location.href.split('#')[0].includes('consoleText');

  var address;
  if (isPlainText) {
    address = location.href.split('#')[0];
  } else {
    address = location.href.split('#')[0].replace(/console$/g, 'logText/progressiveHtml');
  }

  // Make a [synchronous] request to get the latest data
  var xhr = new XMLHttpRequest();
  xhr.open('GET', address, false);
  xhr.send(null);

  // Create a new temporary element for the new data
  var newElement = document.createElement('div');
  newElement.innerHTML = xhr.response.replace(/\(\'http[\.a-zA-Z0-9:\/]*:8080/g, '(\''); // This fixes the approve/abort buttons within the logs
  var to_check;

  // Get the existing logs as well as prepare newElement depending on isPlainText
  if (isPlainText) {
    to_check = document.querySelector('body > pre');
  } else {
    to_check = document.querySelector('.console-output');
  }


  if (newElement.innerHTML === to_check.innerHTML) {
    console.log('Refresh console text: No changes');
  } else {
    console.log('Refresh console text: Applying changes');
    var shouldWeScroll = window.innerHeight + (document.documentElement.scrollTop || document.body.scrollTop) == document.body.scrollHeight;
    to_check.innerHTML = newElement.innerHTML;
    if (shouldWeScroll) {
      window.scrollTo(0,document.body.scrollHeight);
    }
  };
},refreshSeconds * 1000);