How to send custom headers for Http Request

I am using Rest Client for the first time and when I send custom header like below in Https, the service response comes back saying that the request is missing MY-CUSTOM-HEADER. It makes me think that the custom header is not being sent, any special requirement to specify custom header? Thank you.

`POST https://example.com/abc/1.0/ HTTP/1.1 Content-Type: application/json Authorization: Bearer OGafjutE2QGd81z3BJ2Lpuu2suzaa6L3d5h8OTEUZ6S0GXdXMJqV0P MY-CUSTOM-HEADER: {“Id”: “132182”, “productId”: “ABC”, “appVersion”: “1.0”}

{ “transferabilityData”: { “fundFamilyNbr”: 1234 } } `

[Huachao]

@stegano I think the Node.js (my extension relies on) internal behavior is consistent with the spec that HTTP request headers are case-insensitive. And the actual outgoing headers are all lowercased, instead of the Pascal case. The Pascal case displayed in httpbin.org/get is handled by that site internally. You can verify this by using Fiddler.

And this is an upstream limit from Node.js that it doesn’t retain the header case, I am afraid that no ways to workaround. However, I think this behavior makes sense.

[strings-code]

thanks @Huachao for your help.