Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at ***. (Reason: CORS request did not succeed)

JupyterHub
, , ,
1

Hey i had confugured jupyterhub_config.py

c.JupyterHub.tornado_settings = {'headers': {'Content-Security-Policy': "frame-ancestors * 'self' " ,'Access-Control-Allow-Origin': '*','Access-Control-Allow-Methods':'*','Access-Control-Allow-Headers':'*','Access-Control-Allow-Credentials':'true'}}

c.Spawner.args = [f'--NotebookApp.allow_origin=*']
c.NotebookApp.allow_origin = '*'

but still it show error while I run

$.ajax({ 
   type : "GET", 

 
   url : "http://jupiter.***.com/", 

   beforeSend: function(xhr){xhr.setRequestHeader('Authorization', 'token ***');
},
   success : function(result) { 

   }, 
   error : function(result) { 

   } 
 });

Please help me with this. thanks in advance.