Error: unsupported BodyInit type on some runtimes

[Airkro]

After import 'ky' (> 0.31.1), the Error: unsupported BodyInit type will block all code runs.

Since: v0.31.2

export const supportsStreams = (() => {
	let duplexAccessed = false;
	let hasContentType = false;
	const supportsReadableStream = typeof globalThis.ReadableStream === 'function';

	if (supportsReadableStream) {
		hasContentType = new globalThis.Request('', {
			body: new globalThis.ReadableStream(),                   //  <--- this error trigger error
			method: 'POST',
			get duplex() {
				duplexAccessed = true;
				return 'half';
			},
		}).headers.has('Content-Type');
	}

	return duplexAccessed && !hasContentType;
})();

Can we skip this step?

[sindresorhus]

What runtimes?