ESRI IdentityManager.registerToken unable to register Multiple servers

I have multiple secured service that needs to be added to my map for which I need to register multiple servers using ESRi IdentityManager.registerToken method

      IdentityManager.registerToken({
            'server': "https://testurl1",
            'token': "abcasdasasd"
           });

           IdentityManager.registerToken({
            'server': "https://testurl2",
            'token': "MV5VF5SeK9pigO5094rC9MMEyY39SnmB"
           });

The First IdentityManager.registerToken for the testurl1 is able to register the token successfully but the IdentityManager.registerToken for the testurl2 throws the following error

Cannot read property ‘3’ of null
at new k (init.js:457)
at b.hasSameOrigin (init.js:731)
at init.js:731
at Object.some (init.js:70)
at Object.b.canUseXhr (init.js:731)
at Object. (init.js:1999)
at Object.forEach (init.js:71)
at Object.registerServers (init.js:1998)
at Object.registerToken (init.js:1999)
at Object.onReceiveData (Widget.js?wab_dv=2.10:48) “TypeError: Cannot read property ‘3’ of null
at new k (https://js.arcgis.com/3.31/init.js:457:489)

Please provide some thoughts on how to fix this issue..

Thanks
Muthu