asp.net mvc - Kendo DataSource read() fails because of redirection for authentication -

i have mvc website uses kendo controls in many of views.

the code -

view

@(html.kendo().multiselectfor(model => model.certificateids)                 .htmlattributes(new { style = "width: 140%" })                 .datatextfield("certificatename")                 .datavaluefield("certificateid")                 .placeholder("select certificates")                 .datasource(source =>                     {                         source.read(read =>                         {                             read.action("getcertificates", "account");                         });                     })             ) 

controller

[httpget]     [outputcache(duration = int.maxvalue, location = outputcachelocation.any)]     public jsonresult getcertificates()     {         return json(_accountsmanager.getallcertificates(), jsonrequestbehavior.allowget);     } 

the problem - read.action() should certificates me, , 9 out of 10 times does. every , then, when session needs replenished application redirects call https://login.windows.net/ (i using azure ad authentication). redirection causes whole read action fail , no data loaded in dropdown.

the exact error

xmlhttprequest cannot load https://login.windows.net/72...47/oauth2/autho…rm...jc1. no 'access-control-allow-origin' header present on requested resource. origin 'https://xyz-test.cloudapp.net' therefore not allowed access. 

i know type of error happens when cors issue, dont think 1 that. similar redirections authentication happen in other parts of website , work fine.