Visualize.js _opt=true gives (401) unauthorized access with input control

Hey Guys,

I am using visualize.js in MVC application to generate report data.

With URL .../visualize.js?_opt=false I am able to download input controls as well as able to generate the report

However with ../visualize.js?_opt=true, input controls are rendering but not report data. I need to use _opt=true for performance improvements. Any one face this problem before ?

Getting below error:

[bi/report/Report] [ERROR] - authorization.error : Authorization error

e.write @ visualize.js?_opt=true&logLevel=debug:51e.extend._appendLogItem @ visualize.js?_opt=true&logLevel=debug:51e.extend._processLogItem @ visualize.js?_opt=true&logLevel=debug:51t @ visualize.js?_opt=true&logLevel=debug:50n._prepareLogItem @ visualize.js?_opt=true&logLevel=debug:51_id @ visualize.js?_opt=true&logLevel=debug:51__visualize__.define.E @ visualize.js?_opt=true&logLevel=debug:71(anonymous function) @ visualize.js?_opt=true&logLevel=debug:54ot.Callbacks.u @ visualize.js?_opt=true&logLevel=debug:54ot.Callbacks.d.fireWith @ visualize.js?_opt=true&logLevel=debug:54ot.extend.Deferred.ot.each.r.(anonymous function) @ visualize.js?_opt=true&logLevel=debug:54(anonymous function) @ visualize.js?_opt=true&logLevel=debug:54ot.Callbacks.u @ visualize.js?_opt=true&logLevel=debug:54ot.Callbacks.d.fireWith @ visualize.js?_opt=true&logLevel=debug:54ot.extend.Deferred.ot.each.r.(anonymous function) @ visualize.js?_opt=true&logLevel=debug:54ot.Callbacks.u @ visualize.js?_opt=true&logLevel=debug:54ot.Callbacks.d.fireWith @ visualize.js?_opt=true&logLevel=debug:54ot.extend.Deferred.ot.each.r.(anonymous function) @ visualize.js?_opt=true&logLevel=debug:54(anonymous function) @ visualize.js?_opt=true&logLevel=debug:54ot.Callbacks.u @ visualize.js?_opt=true&logLevel=debug:54ot.Callbacks.d.fireWith @ visualize.js?_opt=true&logLevel=debug:54ot.extend.Deferred.ot.each.r.(anonymous function) @ visualize.js?_opt=true&logLevel=debug:54ot.Callbacks.u @ visualize.js?_opt=true&logLevel=debug:54ot.Callbacks.d.fireWith @ visualize.js?_opt=true&logLevel=debug:54ot.extend.Deferred.ot.each.r.(anonymous function) @ visualize.js?_opt=true&logLevel=debug:54(anonymous function) @ visualize.js?_opt=true&logLevel=debug:56N.stack.RpcBehavior.s.incoming @ visualize.js?_opt=true&logLevel=debug:52i @ visualize.js?_opt=true&logLevel=debug:52