/mdn-git/developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequestXMLHttpRequest
abort abort_event channel error_event getAllResponseHeaders getResponseHeader load_event loadend_event loadstart_event mozAnon mozBackgroundRequest mozSystem open overrideMimeType progress_event readyState readystatechange_event response responseText responseType responseURL responseXML send setAttributionReporting setRequestHeader status statusText timeout timeout_event upload withCredentials XMLHttpRequest