Empty arrays are removed from the request

[mjsarfatti]

If I send an object with a property that is an empty array, this property gets removed from the request and not sent to the server.

This is unexpected and breaks a functionality where you would send an empty array to, for example, reset some property on the server.

Sending an empty string, empty object, or null value seems to work instead.

For a reproduction you can see: https://codesandbox.io/s/axios-empty-array-bug-w4yhd?file=/src/index.js

[mjsarfatti]

It's actually an open PR here: sindresorhus/query-string#238 🤦‍♂️