The foundation that makes AJAX possible is the communication layer with the server. The most complete option for performing this communication is the JavaScript XMLHttpRequest object. If ...

<link rel="help" href="https://xhr.spec.whatwg.org/#the-open()-method" data-tested-assertations="following::ol[1]/li[14]/ul/li[1] following::ol[1]/li[14]/ul/li[2 ...

Firefox, Opera (Presto): terminate request with no further events when IFRAME is removed. Chrome: completes request to readyState=4 but responseText is "" so it's ...