hide-warnings.js

// ==UserScript==
// @name         Hide Warnings in Request Log Window
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @include      */Sites-Site/-/ViewLogConsole-Start
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    function contains(selector, text) {

        var elements = document.querySelectorAll(selector);

        return [].filter.call(elements, function(element){
            return RegExp(text).test(element.textContent);
        });
    }

    function hideAll (elements){
        for (var i=0; i < elements.length; i++) {
            elements[i].setAttribute('style', 'display:none');
        }
    }

    var checkWarnings = setInterval(function(){
        var elements = contains('.x-grid3-row', 'WARN');

        if(elements.length > 0){
            hideAll(elements);
            clearInterval(checkWarnings);
        }
    }, 300);

})();