Failed to convert header keys to lower case due to field name conflict: content-type

[maxwhoppa]

What is the expected behavior?

nock does not cause an error if headers have uppercase letters

What is the actual behavior?

Content-Type in header request causes a conflict

Possible solution

Not failing on lowercase conflict

How to reproduce the issue

Make a request with Content-Type in header request

  'Content-Type': 'application/json',

Versions

Software	Version(s)
Nock	13.1.3
Node	14.7.6
TypeScript	4.3.2

related issue: #1191

[gr2m]

Can you replicate the problem using a test case on https://runkit.com/? Example: https://runkit.com/gr2m/nock-nock-1076

[DomGarguilo]

Is this related to #23?

[gr2m]

Is this related to #23?

maybe? It's 9 years old though. Having a reproducible test case would still be a big help, either on RunKit.com or using a pull request with a failing test