feat(fetch): add Response.json static method

[mcansh]

remix-run/remix#3308

======================================================================================

confirmed working with npm link and importing Response from @remix-run/web-fetch

[changeset-bot]

🦋 Changeset detected

Latest commit: 857eec9

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@remix-run/web-fetch	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[kettanaito]

As far as I know, there's no Response.json static method on the Fetch API Response class. If this is a convenience feature, I'd highly encourage you not to add it to the Response class directly.

I'm solving a similar convenience issue in MSW, and you can draw some inspiration from there.

[mcansh]

it's in the spec and implemented in chrome, so it really just makes our polyfill closer to the spec

[kettanaito]

@mcansh, a good point, I must've been using a really old version of Chrome so it didn't show up when I checked this. Thanks for correcting me!

[Copilot]

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.