Test support of AbortSignal.any() (#711)

Author: pioug

source/core/Ky.ts

@@ -20,6 +20,7 @@ import {
 	responseTypes,
 	stop,
 	supportsAbortController,
+	supportsAbortSignal,
 	supportsFormData,
 	supportsResponseStreams,
 	supportsRequestStreams,
@@ -168,7 +169,7 @@ export class Ky {
 			this._input = this._options.prefixUrl + this._input;
 		}
 
-		if (supportsAbortController) {
+		if (supportsAbortController && supportsAbortSignal) {
 			const originalSignal = this._options.signal ?? (this._input as Request).signal;
 			this.abortController = new globalThis.AbortController();
 			this._options.signal = originalSignal ? AbortSignal.any([originalSignal, this.abortController.signal]) : this.abortController.signal;

source/core/constants.ts

@@ -33,6 +33,7 @@ export const supportsRequestStreams = (() => {
 })();
 
 export const supportsAbortController = typeof globalThis.AbortController === 'function';
+export const supportsAbortSignal = typeof globalThis.AbortSignal === 'function' && typeof globalThis.AbortSignal.any === 'function';
 export const supportsResponseStreams = typeof globalThis.ReadableStream === 'function';
 export const supportsFormData = typeof globalThis.FormData === 'function';