Bookmarklet helper for adding global Ajax callbacks manualy from console.

README.md

About

Helper for adding global Ajax callbacks manualy from console. See https://stackoverflow.com/questions/5202296/add-a-hook-to-all-ajax-requests-on-a-page and https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/Using_XMLHttpRequest#Monitoring_progress

Install

Install as bookmarklet.

Use

addAjaxCallback(function() {console.log(this.responseText);});

evernoteUrlExtraction.js

var urls = [];
setAjaxCallback(function() {
var match = this.responseText.match(/"web.clip","[^"]*/);
if (!match) {
	match = this.responseText.match(/"WebClipper for Firefox","[^"]*/);
}
console.log(match);
if (match) {
	urls = urls.concat(match);
}
});

globalAjaxCallbacks.js

function addAjaxCallback(callback, replace = false){
    var oldOpen, i;
    if( XMLHttpRequest.callbacks ) {
      if (replace) {
        XMLHttpRequest.callbacks = [callback];
      } else {
        XMLHttpRequest.callbacks.push( callback );
      }
    } else {
        XMLHttpRequest.callbacks = [callback];
        oldOpen = XMLHttpRequest.prototype.open;
        XMLHttpRequest.prototype.open = function(){
            for( i = 0; i < XMLHttpRequest.callbacks.length; i++ ) {
                this.addEventListener('load', XMLHttpRequest.callbacks[i]);
            }
            oldOpen.apply(this, arguments);
        }
    }
}

function setAjaxCallback(callback) {
  addAjaxCallback(callback, true);
}

function removeAjaxCallbacks() {
    XMLHttpRequest.callbacks = [];
}