test middleware to fix CORS issue with sentry

examples/nextjs/middleware.ts

@@ -0,0 +1,31 @@
+import { NextResponse } from 'next/server'
+import type { NextRequest } from 'next/server'
+
+export function middleware(request: NextRequest) {
+  // Get the origin of the request
+  const origin = request.headers.get('origin') || ''
+
+  // Create response object
+  const response = NextResponse.next()
+
+  // Add CORS headers
+  response.headers.set('Access-Control-Allow-Origin', origin)
+  response.headers.set('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS')
+  response.headers.set('Access-Control-Allow-Headers', 'Content-Type, Authorization, sentry-trace')
+  response.headers.set('Access-Control-Allow-Credentials', 'true')
+
+  // Handle preflight requests
+  if (request.method === 'OPTIONS') {
+    return new NextResponse(null, {
+      status: 200,
+      headers: response.headers,
+    })
+  }
+
+  return response
+}
+
+// Configure which paths should be handled by the middleware
+export const config = {
+  matcher: '/api/:path*',  // Applies to all API routes
+}