fix(AbortError): added type guard

[atassis]

added type guard, fixed type in function

[aikoven]

There are many different AbortErrors, one of which comes from the DOM API. It's constructor is not even accessible through globals, so there's no way to use instanceof with it. Instead, the web platform instructs to check if an error is an instance of AbortError using error.name === 'AbortError'.

So this change would break isAbortError when built-in AbortError is passed in. Also consider that NodeJS has its own AbortError class. We'd like the isAbortError to work with instances of any of them.

instanceof checks would also break in case when AbortError instance is coming from a different installed version of abort-controller-x package.

[aikoven]

Published 📦 abort-controller-x@0.4.1