Expose X-Request-Id header in response

Author: RobFaustLZ

package.json

@@ -1,6 +1,6 @@
 {
   "name": "labelzoom-cf-api-proxy",
-  "version": "1.0.6",
+  "version": "1.0.7",
   "private": true,
   "scripts": {
     "deploy": "wrangler deploy",

src/cors.ts

@@ -3,6 +3,7 @@ const corsHeaders = {
 	"Access-Control-Allow-Methods": "GET,HEAD,POST,PUT,DELETE,OPTIONS",
 	"Access-Control-Max-Age": "86400",
 	"Access-Control-Allow-Credentials": "true",
+	"Access-Control-Expose-Headers": "X-Request-Id",
 };
 
 /**
@@ -53,6 +54,7 @@ export function responseWithAllowOrigin(response: Response, origin = '*'): Respo
 	// Add cache control headers
 	newResponse.headers.set('Access-Control-Allow-Origin', origin);
 	newResponse.headers.set('Access-Control-Allow-Credentials', 'true');
+	newResponse.headers.set('Access-Control-Expose-Headers', 'X-Request-Id');
 
 	return newResponse;
 }