Hi guys,
when we are using ajax to invoke OpenStack Rest API, 
We get the error messages about the cross domain:
Response to preflight request doesn't pass access control check:
No 'Access-Control-Allow-Orgin' header is present on the requested resource.
The response had HTTP status code 401.
Could someone give suggestion about this question?
Thanks very much.
Best Regards,
    xiangxinyong
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