Fix: White screen error and relative API paths

backend/main.py

@@ -263,21 +263,25 @@ def chat_with_bot(req: ChatRequest):
 FRONTEND_PATH = os.path.join(BASE_DIR, "..", "frontend", "dist")
 
 if os.path.exists(FRONTEND_PATH):
-    # Mount the static files (CSS, JS, images)
-    app.mount("/static", StaticFiles(directory=FRONTEND_PATH), name="static")
-
-    # Catch-all route to serve the React index.html for any non-API route
     @app.get("/{full_path:path}")
     async def serve_frontend(full_path: str):
-        # If the path looks like an API call, let it 404 or be handled by other routes
-        if full_path.startswith("api/"):
+        # 1. Skip API routes
+        if full_path.startswith("api"):
             return {"detail": "Not Found"}
-        
+            
+        # 2. Check if the file exists (for assets like .js, .css, .png)
+        file_path = os.path.join(FRONTEND_PATH, full_path)
+        if os.path.isfile(file_path):
+            return FileResponse(file_path)
+            
+        # 3. Fallback to index.html for React Router
         index_file = os.path.join(FRONTEND_PATH, "index.html")
         if os.path.exists(index_file):
             return FileResponse(index_file)
+        
         return {"detail": "Frontend build not found"}
 else:
     @app.get("/")
     def read_root():
         return {"message": "Wafer Defect API is running. Frontend build folder not found."}
+

frontend/src/apiConfig.js

@@ -1,3 +1,3 @@
-const API_BASE_URL = import.meta.env.VITE_API_URL || 'http://localhost:8000';
+const API_BASE_URL = '';
 
 export default API_BASE_URL;