Im calling a Java App that is called like "http://localhost:32567?test=aaa" trying to send a a text response to a browser that connects. Response I send is like
HTTP/1.1 200 OK
Content-Type: text/xml
Cache-Control: no-cache
Date: Thu Nov 02 15:56:26 NZDT 2017
<?xml version="1.0" ?><root><message>hello world</message><status>OK</status></root>
When I open the page in browser it works fine and but when I call it using AJAX as Post request the HTTP status returned is 0?
this is code im running in the browser
var http_request = new XMLHttpRequest();
http_request.overrideMimeType('text/xml');
http_request.onreadystatechange = function() {
alert(http_request.readyState + " " + http_request.status);
};
http_request.open('POST', "http://localhost:32567?test=aaa", true);
http_request.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
http_request.send("");
response i get is
1 0
2 0
4 0
where I expect to get
4 200
The Java Test Code sending the response is as follows
import java.io.*;
import java.net.*;
public class test {
public test() throws Exception {
ServerSocket ss = new ServerSocket(32567);
Socket client = null;
while ((client = ss.accept()) != null) {
boolean sentOut = false;
BufferedWriter out = new BufferedWriter(new OutputStreamWriter(client.getOutputStream()));
String output = "HTTP/1.1 200 OK
Content-Type: text/xml
Cache-Control: no-cache
Date: " + (new java.util.Date()) + "
<?xml version=\"1.0\" ?><root><message>test</message><status>OK</status></root>
";
System.out.println("--------------------------
" + output);
out.write(output);
out.flush();
out.close();
client.close();
}
}
public static void main(String args[]) throws Exception {
new test();
}
}
As Phil suggested the issue is with CORS. Add a header Access-Control-Allow-Origin: * to the response and the browser is compromised.