islam-tenovos opened a new issue, #6092: URL: https://github.com/apache/jmeter/issues/6092
### Expected behavior JMeter should not append/add the content-type it self when it is not configured in header. ### Actual behavior JMeter is sending a content-type automatically when it is not configured in the header and in the result an error occurred as APIs do not need the content type header with below error. `{ "statusCode": 415, "code": "FST_ERR_CTP_INVALID_MEDIA_TYPE", "error": "Unsupported Media Type", "message": "Unsupported Media Type: application/x-www-form-urlencoded; charset=UTF-8" }` ### Steps to reproduce the problem Create a JMeter test plan with a thread group and add a HTTP request type(Post, delete etc.) with header manager having no Content-type header. ### JMeter Version 5.6.2 ### Java Version openJDK version 17 ### OS Version Amazon linux 2 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@jmeter.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org