Error 415 in jquery.ajax call trying to authenticate in Jira API REST

[MP]

Hi all,

I'm receiving "Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource." error with status code 415 (Unsupported Media Type) after my jquery ajax call.

My webpage is running in http://localhost:60501 so I've added it to the jira whitelist allowing incoming and outcoming conections.

My code is:

jQuery.ajax({
type: "POST",
url: "http://myjira/rest/auth/1/session",
crossOrigin: true,
dataType: "JSON",
contentType: "application/json",
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json'
},
data: JSON.stringify({ "username": "username", "password": "password" }),
error: function () {
debugger;
console.log('error, args:');
console.log(arguments);
},
success: function () {
debugger;
alert('Success!');
}
});

There's no problem if I try to log with ARC chrome extension.

Does somebody know what can be the problem?

Thanks in advance.

[MP · Accepted solution]

I solved my problem using this trick:

https://jira.atlassian.com/browse/CONFSERVER-41269