Hey @jmacnaught,
Welcome to the community
This is an interesting situation. Could you share information about how you’re setting the headers, screenshots maybe?
I could try reproducing it at my end, if that helps.
Here is a screen shot of the UI. I have checked the header to enable it. I usually have a variable name there, but I’m using a directly entered value in this test.
All seems fine I guess.
Could you try importing this template by selecting the Run in Postman option on top. There’s a request that sends Headers in there. If that works then maybe we can compare why this isn’t working. https://docs.postman-echo.com/#da16c006-6293-c1fe-ea42-e9ba8a5e68b1
All my collections have been imported from OpenAPI 3.0 spec. I created a new collection and added a single request, and that request sends the header correctly. So, at this point, I can only guess that the import sets or fails to set something.
So I generated a collection from an OpenAPI spec and modified a request to include some headers. I was able to see those headers in the request under Console.
Having the same issue. I tried adding some new headers today, and the old headers are still being sent but the new headers aren’t. I’ve check the server to see what’s it’ getting and it’s basically not sending the newly added headers