What you need to configure

Enable CORS
Allow RANGE & OPTIONS requests

How to do it: in your Nimble.conf file

To configure Nimble, you have to manually edit your Nimble.conf file.

You will find the file by following this path: etc/nimble/ for Linux or in the corresponding location for other operating systems.

Copy these two headers into the file using the example below:

access_control_allow_origin = *
access_control_allow_headers = Range

IMPORTANT

To apply config changes, please re-start Nimble instance by running:
sudo service nimble restart