When making a POST request to the Nprinting API /tasks/{taskid}/executions endpoint to start a task, the error 403 Forbidden REVEL_CSRF: tokens mismatch is returned.
Environment
POST requests require the X-XSRF-token header, see How to Authenticate / Connect with the Qlik NPrinting API in Postman with NTLM Authentication.
Resolution:
Include the X-XSRF-token header.
For more information, see How to Authenticate / Connect with the Qlik NPrinting API in Postman with NTLM Authentication.