I want connect to server by REST API and i need use CORS-type request.
My CORS-type request in qml is not supported.
For test i use page: https://jsonplaceholder.typicode.com/photos/
I checked request by special page: https://resttesttest.com/
On the page all work fine but in my application not.
I get back “CORS not supported” (look to my code).
What happend? Should I switch on feature in QT/QML?
I want receive JSON form from indicated by me page.
f
unction createCORSRequest(method, url) {
var xhr = new XMLHttpRequest();
if (“withCredentials” in xhr) {
// XHR for Chrome/Firefox/Opera/Safari.
xhr.open(method, url, true);
} else if (typeof XDomainRequest != “undefined”) {
// XDomainRequest for IE.
xhr = new XDomainRequest();
xhr.open(method, url);
} else {
// CORS not supported.
xhr = null;
}
return xhr;
}
// Helper method to parse the title tag from the response.
/*function getTitle(text) {
return text.match(‘<title>(.*)?</title>’)[1];
}/*
// Make the actual CORS request.
function makeCorsRequest() {
// This is a sample server that supports CORS.
var url = ‘https://jsonplaceholder.typicode.com/photos/’;
var xhr = createCORSRequest(‘GET’, url);
if (!xhr) {
mylabel.text += “CORS not supported”;
return;
}
// Response handlers.
xhr.onload = function() {
var text = xhr.responseText;
//var title = getTitle(text);
mylabel.text += “Response from CORS request”;
};
xhr.onerror = function() {
mylabel.text += “Woops, there was an error making the request”;
};
xhr.send();
}
makeCorsRequest();