[Feature Request] nifti-volume-loader should be configurable to include custom (auth) headers in requests (beforeSend)

[nagychris]

What feature or change would you like to see made?

Current behavior
When using https://github.com/cornerstonejs/cornerstone3D/tree/main/packages/nifti-volume-loader, it is currently not possible to configure any headers for the requests to retrieve the nifti volumes.

Expected behavior
nifti-volume-loader can be configured when registering it (e.g. in a beforeSend method similar to dicomImageLoader), allowing for custom headers, e.g., for authentication towards the server.

Why should we prioritize this feature?

Without this feature it is impossible to use the nifti-volume-loader in our project, because we require authentication towards a server that contains the nifti files. This will be the case for a lot of production applications with proper data security measures, especially in the medical domain and its patient privacy concerns.

[IbrahimCSAE]

Thanks, this is a good one, i will add it this week.