send state pass array is not array form one page to another page #114
Description
Content-Type is application/json if state value is Array. But Content-Type is application/octet-stream if you pass Array form one page to another page . The reason is use instanceof to test state value .
see javascript-when-i-pass-array-from-iframe-function-the-array-lose-his-type
Test in chrome with windows 10.
t1. html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script>
function test() {
var arr = [];
arr.push(1);
var r1 = arr instanceof Array;
console.log("is array (instanceof) " + r1.toString());
console.log("is array (Array.isArray) " + Array.isArray(arr))
console.log("call iframe")
window.f1.demo(arr);
}
</script>
</head>
<body>
<iframe src="t2.html" name="f1" height="600" width="100%" frameborder="0" scrolling="no" onload="test()"></iframe>
</body>
</html>t2.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script>
demo = function (param) {
var r1 = param instanceof Array;
console.log("is array (instanceof) " + r1.toString())
console.log("is array (Array.isArray) " + Array.isArray(param))
}
</script>
</head>
<body>
</body>
</html>The consloe result
is array (instanceof) true
is array (Array.isArray) true
call iframe
is array (instanceof) false
is array (Array.isArray) true