I'm using simple-oauth2 in this example to query Microsoft Graph. All works well so far. But when I try to refresh the access token var newToken = await storedToken.refresh();, I get an error:
The content-type is not JSON compatible
This is thrown in wreck's index.js and it seems like there is no content-type set in the headers, while the mode is set to strict. The problem is, that I have no idea how to change this or why this is happening. It only happens on refresh().