Middleware onError doesn't work

[dipras]

openapi-fetch version

0.15.0

Description

I want to catch an error happen during a request. But when i tried it on React native, i can't even trigger a console when error happened. As you can see at my code below

but for onRequest, there is no problem

Reproduction

1. Write middleware onError contain console.log
2. Trigger error request
3. The console doesn't show up

Expected result

The console should show up when the error happened

Extra

• I’m willing to open a PR (see CONTRIBUTING.md)