Accessing Jira API from javascript ajax call getting CORS error

I have installed JIRA in my local machine and trying to use the REST API from another application which is installed in same machine.

While am calling the API from ajax call, I am getting the below CORS error.

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at (Reason: CORS header 'Access-Control-Allow-Origin' missing).

Even I added the requesting URL in JIRA whitelist, but getting same error only.

2 answers

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Have you set up headers:

headers = {

'Content-Type': 'application/json',
'X-Atlassian-Token': 'nocheck'

Are you working with iframes?

Is that JIRA cloud?


Thanks for your reply Aleks. I added those headers, but still its not working.

Are you working with iframes? - NO (using simple ajax call)

Is that JIRA cloud? - NO (installed in my local machine. I tired with JIRA cloud as well, getting same error)


This is my sample code,

    Test <button onclick="testJira();">Click</button>
        function testJira() {
                type: "GET",
                crossDomain: true,
                dataType: "json",
                url: "",
                headers: {
                    'Content-Type' : 'application/json',
                    'Authorization' : 'Basic something=',
                    'X-Atlassian-Token': 'no-check',
                    'Access-Control-Allow-Origin' : '*'
                success: function(result) {
                error: function(error) {
    <script src=""></script>

I have run same code but I got below error
"Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access."


please let me know How can I resolve this?

This widget could not be displayed.

I have the very same issue (trying to use Confluence Cloud REST API rather than JIRA). Any news on this?

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