Abort Signal Cancellation is failing due to incorrect variable name

[sean-dickinson]

Describe the bug

Request cancellation via AbortSignals is failing due to a runtime error caused by an incorrect variable name. This bug was introduced in this PR #4659 where the variable name req is being used in the context where it should request.

To Reproduce

In Release 0.28.0 make a request and attempt to cancel it using an AbortSignal. It will fail with the following error:

Uncaught ReferenceError: req is not defined
    at AbortSignal.onCanceled (axios.js?v=32772bb9:1093:77)
// Longer stack trace continues

Code snippet

No response

Expected behavior

Query cancellation should succeed.

Axios Version

0.28.0

Adapter Version

XHR

Browser

any

Browser Version

any

Node.js Version

No response

OS

No response

Additional Library Versions

No response

Additional context/Screenshots

No response