return cors headers for 404 response as well

src/index.ts

@@ -406,21 +406,23 @@ export class Router<Env = any, CtxExt = {}, ReqExt = {}> {
 		}
 
 		const route = this.getRoute(req)
+		let response: Response | undefined
 
 		if (!route)
-			return new Response(this.debugMode ? 'Route not found!' : null, { status: 404 })
+			response = new Response(this.debugMode ? 'Route not found!' : null, { status: 404 })
 
-		const handlers = [...this.globalHandlers, ...route.handlers]
+		if (!response) {
-		const dbg = this.debugMode
+			const handlers = [
-
+				...this.globalHandlers,
-		let response: Response | undefined
+				...(route?.handlers ?? [])
+			]
 
 			for (const handler of handlers) {
 				const context = {
 					...(ctxExt ?? {}),
 					env,
 					req,
-				dbg,
+					dbg: this.debugMode,
 					ctx
 				} as RouterContext<Env, CtxExt, ReqExt>
 
@@ -431,9 +433,10 @@ export class Router<Env = any, CtxExt = {}, ReqExt = {}> {
 					break
 				}
 			}
+		}
 
 		if (!response)
-			return new Response(this.debugMode ? 'Handler did not return a Response!' : null, { status: 404 })
+			response = new Response(this.debugMode ? 'Handler did not return a Response!' : null, { status: 404 })
 
 		if (this.corsEnabled) {
 			response = new Response(response.body, response)