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import QtQuick 2.0 QtObject { property string url property bool dataOK: false property bool done: false Component.onCompleted: { var x = new XMLHttpRequest; x.open("GET", url); x.onreadystatechange = function() { if (x.readyState == XMLHttpRequest.DONE) { done = true; dataOK = x.status == 404; } } x.send(); } }