I’ve got a test fragment that makes a few requests, which work fine. I now want to add a new PUT request that uploads a file to a an azure storage account container. I currently get a 400 with an error that a mandatory header hasn’t been included. After a little research it appears I need the ‘x-ms-blob-type’ header with a value of ‘BlockBlob’.
This is where my issue lies. I’ve added an HTTP Header Manager to that particular request, but the header doesn’t seem to get added. There is a Header Manager at the fragment level, that is used to apply generic headers to all requests, but this header manager is just for that request. I was expecting the 2 to be merged, but it looks like no headers are being applied to that particular request.
>Solution :
Your expectation is correct, HTTP Header Managers obey JMeter Scoping Rules and top-level headers are being recursively merged to the local HTTP Header Managers.
So try looking at Request -> Request Headers tab of the View Results Tree listener and see what headers are being sent
Additionally you can enable debug logging for JMeter’s HTTP components by adding the next line to log4j2.xml file
<Logger name="org.apache.http" level="debug" />
and upon JMeter restart you should see the outgoing headers in jmeter.log file



