fixed file upload?

frontend/astro.config.mjs

@@ -8,6 +8,9 @@ import node from '@astrojs/node';
 // https://astro.build/config
 export default defineConfig({
   output: 'server',
+  security: {
+    checkOrigin: false
+  },
   image: {
     service: { entrypoint: 'astro/assets/services/noop' }
   },

frontend/src/pages/api/[...path].ts

@@ -14,9 +14,7 @@ export const ALL: APIRoute = async ({ request, params }) => {
   url.search = requestUrl.search;
 
   const headers = new Headers();
-  // We must NOT forward 'host' (causes backend to reject if it doesn't match)
-  // We must NOT forward 'connection'
-  // We should let fetch recalculate 'content-length'
+  // Filter headers to avoid conflicts.
   const forbiddenHeaders = ['host', 'connection', 'content-length', 'transfer-encoding', 'origin', 'referer'];
   
   request.headers.forEach((value, key) => {
@@ -35,14 +33,20 @@ export const ALL: APIRoute = async ({ request, params }) => {
       headers: headers,
     };
 
-    // Only attach body for methods that allow it
+    // Safely handle body for mutating requests
     if (request.method !== 'GET' && request.method !== 'HEAD') {
-        // Pass the raw stream directly. This is crucial for multipart/form-data.
-        fetchOptions.body = request.body;
+        // Clone the request to safely access the body stream
+        const reqClone = request.clone();
+        
+        // For DELETE requests, check if a body actually exists before attaching it
+        // Some fetch implementations fail if a body is provided for DELETE
+        if (request.method !== 'DELETE' || reqClone.body) {
+             fetchOptions.body = reqClone.body;
              // Required by Node.js fetch when body is a ReadableStream
              // @ts-ignore
              fetchOptions.duplex = 'half';
         }
+    }
 
     const response = await fetch(url.toString(), fetchOptions);