Promisse fails when response has no content type.

[nurv]

When calling DELETE django rest framework using core api, it throws an exception.

The cause for this is that DRF removed the header for content type on 204 responses. In this line the result from calling get over the Headers object when that header doesn't exist is null. However in this line the check is made for undefined not null. This check fails, causing it to fail in this line by dereferencing null.

[audiolion]

sounds like you did a lot of great work tracking down the source of the error, I would just formalize this all into a PR and a maintainer will review with time. I am pretty sure the author intends to maintain, but he also has a lot of other projects he oversees

edit: also, #37 might fix this

[tomchristie]

Resolved via #37.
New release incoming shortly.