mturk_PRE_reloader.user.js

// ==UserScript==
// @name         mturk PRE eloader
// @version      1.0
// @include      https://www.mturk.com/mturk/*
// @author       slothbear
// @description  Automatically reloads after Page Request Error
// @grant        none
// ==/UserScript==


var content = document.body.textContent || document.body.innerText;
var hasText = content.indexOf("You have exceeded the maximum allowed page request rate for this website.")!==-1;
if(hasText){
	var randomTime = Math.floor((Math.random() * 4000) + 1500); //between 1.5 and 4 seconds so multiple pages don't load at once.
   setTimeout(function(){
       window.location.reload();
   },randomTime);
}