Ember js, in heroku production, live reload fails to load and time out and loading spinner keeps spinning

I just deployed a simple side project using ember and rails. Evenything is good but when first enter the webpage, the browser loading spinner keeps spinning.

I checked on the console and it has an error saying fetching ember cli live reload has timed out.

This does not happen on local and live reload works fine on local. How can I fix this?

Thanks!

spinner

error message