Msw: Support more types passed to `context.json` helper

[wyze]

Describe the bug

The json method on context object should support more types than Record<string, any>. Anything that results in a valid JSON.stringify should be supported.

Environment

• msw: 0.20.5
• nodejs: 12.16.1
• npm: 6.13.4

Please also provide your browser version. (N/A)

To Reproduce

Steps to reproduce the behavior:

1. Create a rest request handler.
2. Use the context.json method.
3. Try passing anything other than an object or array.
4. See the type error.

Expected behavior

I would expect no type error to occur when passing anything that would result in a valid JSON.stringify call.

Screenshots

[kettanaito]

Hey, @wyze! Thank you for suggesting this.

This makes perfect sense, any valid JSON should be accepted as an argument to ctx.json(). Please, would you be interested in issuing a pull request to extend this support? I'd gladly assist on code review and any questions you may have. Let me know.

[wyze]

Please, would you be interested in issuing a pull request to extend this support?

Definitely! I will work it up now.