Unable to get Draft Id in new Gmail Interface

[SANDEEP CHIKHALE]

Getting error in the injected.js file and not able to get draft ID in the new gmail interface

I have removed all the code which is not required in this case

Required Code 

InboxSDK.load(1, SH_APP_ID).then(function (sdk) {
     sdk.Compose.registerComposeViewHandler(function (composeView) {
         let emailDraftID = "";
          composeView.getDraftID().then(res => {
                emailDraftID = res;
           });
      }
});

Every time a new compose window opened - after few seconds I am getting following error

Inject script error = new BigNumber() not a number .

This error is appearing on on new Gmail Interface - It really created problem for us.

Could you please provide some information on this.

Any help would be very beneficial for us.

Let me know if I can help in any way.

Thanks.

[Chris Cowan]

This issue should be fixed now. New Gmail had made a change that broke this feature.