Msw: There is no warning when using query params in the handler URL

[rafaelalmeidatk]

Describe the bug

The following mock will never work since the query strings are removed from the original URL but not from the handler URL:

rest.get("/foo?bar=10", (req, res, ctx) => {
  return res(
    ctx.json({
      foo: "bar",
    })
  );
}),

Environment

• msw: 0.19.0
• nodejs: 12.17.0
• npm: 6.14.4

To Reproduce

Steps to reproduce the behavior:

1. Add the handler mentioned above
2. In the app, do a request to /foo?bar=10
3. Error: the request is not mocked

Expected behavior

There should be an warning explaining why the mock won't work and how to fix the problem

[kettanaito]

Hey, @rafaelalmeidatk! Nice to see you here! Thanks for bringing this in a form of an issue. The usage of query parameters in request handlers URLs should be discouraged and a warning message would help tremendously.

I'll try to plan and do this in the nearest future. Just in case you'd be interested in shipping a pull request with this, I'll always support you in code review to make this change awesome.