The Qlik Sense ODAG API is returning error 500 when the Expect: 100-continue header is used
Environments:
Qlik Sense Enterprise on Windows June 2019 and later
Resolution
Some clients, such as the .NET framework and cURL send the Expect:100-continue by default.
The Qlik Sense ODAG API does not support this header and the API call will fail with an error 500 Internal server error when this header is used.
The header should be removed from the request for it to work.