Node env - When using HTTP error code in a response, statusText is set to null

First of all, thanks a lot for MSW, it’s really cool 👍

Describe the bug

When using HTTP error code in a response, statusText is set to null. It’s in node environment.

Environment

• msw: 0.19.5
• nodejs: 12.18.0
• npm: 6.14.5

Please also provide your browser version.

To Reproduce

Steps to reproduce the behavior:

1. Setup a response with an error code:

return res(
      ctx.status(401),
      ctx.json({
        message: 'Mocked response JSON body',
      }),
);

1. If you parse statusText to format an error message, you can see null value:

{
    "statusCode": 401,
    "message": "null: Mocked response JSON body"
}

Note, same happens if you provide custom statusText like so ctx.status(401, 'Test')

Expected behavior

Response should contain correct default statusText. Also it should be replaced by a custom one, if provided:

{
    "statusCode": 401,
    "message": "Unauthorized: Mocked response JSON body"
}

Screenshots

None

[kettanaito]

The scenario has been tested and the fix has been released in node-request-interceptor@0.3.3 (see Release notes).

@marcosvega91, please, do you mind carrying over the update of the dependency in MSW? Feel free to use pull requests like this as an inspiration.

[m0t0r]

@marcosvega91 thanks a lot for the fix!