I tried apply jquery datepicker on a newly opened blank window (opened with window.open).
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>jQuery UI Datepicker - Default functionality</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.13.2/themes/base/jquery-ui.css">
<link rel="stylesheet" href="/resources/demos/style.css">
<script src="https://code.jquery.com/jquery-3.6.0.js"></script>
<script src="https://code.jquery.com/ui/1.13.2/jquery-ui.js"></script>
</head>
<body>
</body>
</html>
<script>
const button = document.createElement('button');
button.id = 'button';
document.body.appendChild(button);
$('#button').on('click', function() {
newWindow = window.open('', '_blank', 'width=700, height=1000');
var div = newWindow.document.createElement('div');
div.style.textAlign = "center";
div.id = "div_riaszt_kuldes";
newWindow.document.body.appendChild(div);
input2 = $('<input id="datepicker" type="text">', [,newWindow.document.body]);
$(input2).appendTo(newWindow.document.body);
$(input2).datepicker();
});
</script>
When I call datepicker, the following error occurs:
jquery-3.6.0.js:6401 Uncaught TypeError: Cannot read properties of null (reading 'defaultView') at getStyles (jquery-3.6.0.js:6401:33) at curCSS (jquery-3.6.0.js:6585:25) at Function.css (jquery-3.6.0.js:6996:10) at jquery-3.6.0.js:7145:12 at access (jquery-3.6.0.js:4203:15) at jQuery.fn.init.css (jquery-3.6.0.js:7127:10) at datepicker_getZindex (jquery-ui.js:7333:19) at HTMLInputElement._showDatepicker (jquery-ui.js:8130:31) at HTMLInputElement.dispatch (jquery-3.6.0.js:5430:27) at elemData.handle (jquery-3.6.0.js:5234:28)
The elem.ownerDocument is a null object specifically.
However, when I opened the new window as _parent, everything works like a charm.
