fix: clone response before mutating it as of ISSUE-103

[RobinBertilsson]

As mentioned in ISSUE-103.

an error is happening when same API endpoint is triggered multiple times during test execution. Seems like error comes from onMockedResponse method, comparing it with same method from msw we can see that response is cloned before usage. When I've added response.clone() problem is gone.

[RobinBertilsson]

@valendres could you please have a look? 🙏

[kettanaito]

I think it's much better to use a higher-level getResponse() instead of handleRequest(). Any history as to why handleRequest is used instead? Is it to tap into resolutionContext.baseUrl?

[RobinBertilsson]

Not sure i'm following... Where do you mean i would use handleRequest?
The only difference in this PR is that i accept the request parameter provided by onMockedResponse, which i then use to clone the response, before mutating it. The reason for the clone is because the stream is "locked" as per this error message.

ReadableStream is locked

[kettanaito]

My comment isn't related to your changes. If you scroll a few lines above your change, you see the usage of handleRequest. Funneling the mocked response from onMockedResponse to Playwright isn't the best place so I'm suggesting using getResponse() instead.