TypeError cancelled

[BarryThePenguin]

It looks like bot Safari 14 and iOS Safari 14 can throw a TypeError with a message of cancelled when a fetch request is cancelled. Would it make sense to include here?

See also https://github.com/shuding/request-cancellation-test 👀

[sindresorhus]

Cancellation is not a network error, so I don't think it makes sense in this package.

[BarryThePenguin]

That's fair.. I guess I'm trying to achieve something more specific where I am using is-network-error to detect if an error was the result of a network error or not. Due to the multiple ways that different browsers report network errors, it's difficult to determine the cause of a particular network error.

For instance, Chrome appears to use the same error TypeError: Failed to fetch for both network errors and fetch requests that have been aborted, either using AbortSignal or from the browser itself. So in that instance it's difficult to differentiate them.

In this instance it looks like the error message produced by Safari might distinguish between a network error and aborted fetch request? If that's the case, I'll just handle the TypeError: cancelled error myself.

[sindresorhus]

In this instance it looks like the error message produced by Safari might distinguish between a network error and aborted fetch request?

Seems like that, yes.