It does not appear that 'options.withCredentials' is being applied to the http POST.

[ChrisMancini]

The call method accepts an options object. The httpClient.post method accepts an options object.

Within this options object is a withCredentials flag. It does not appear that this flag is pushed down to the httpClient.post method in the _invoke method.

[seyfer]

@ChrisMancini I think this repo is abandoned. Feel free to contribute there

#125 (comment)