greasemonkey-capiche.js

// ==UserScript==
// @name          capiche
// @namespace     http://capiche.org/greasemonkey
// @description	  Developer tool for RESTful APIs
// @author        Josh
// @homepage      http://capiche.org
// @include       http://localhost:8080/*	
// ==/UserScript==

var p = unsafeWindow.XMLHttpRequest.prototype;
var log = unsafeWindow.console.log;

if (typeof p.oldsend != 'function') {
    p.oldsend = p.send;
    p.send = function() {
        p.oldsend.apply(this, arguments);
        this.addEventListener('readystatechange', function() {
            if (this.readyState == 2) {/* LOADED */
                log('xhr loaded');
            } else if (this.readyState == 4) { /* COMPLETED */
                log('xhr completed');
            }
        }, false);
    };
}