Unhandled Promise rejection: (SystemJS) Invalid calling object In IE11

[JoeyLi-1]

Hi There,

IE11 will throw this error when pace work together with Systemjs.

I found in line 440; window.XMLHttpRequest = function(flags) { var req = new _XMLHttpRequest(flags); <- this line; monitorXHR(req); return req; };

If I comment out this line then the error gone.

Can somebody tell me how to fix this issue?

Thanks a lot!

[houssemFat-DDF]

I confirm the bug with 1.0.2, pace override default XHR and then there's Invalid calling object not handled.