fix code

backend/main.py

@@ -82,7 +82,14 @@ async def upload_file(file: UploadFile = File(...)):
         # Cleanup
         os.unlink(file_path)
 
-        return {"session_id": session_id, "message": "File processed successfully"}
+        # Change the response to include a header that prevents the popup
+        return JSONResponse(
+            content={"session_id": session_id, "message": "File processed successfully"},
+            headers={
+                "Content-Type": "application/json",
+                "X-Content-Type-Options": "nosniff"
+            }
+        )
 
     except Exception as e:
         raise HTTPException(status_code=500, detail=str(e))

frontend/dist/js/app.js

@@ -20,7 +20,6 @@ async function uploadFile() {
     const uploadSpinner = document.getElementById('uploadSpinner');
     
     if (!fileInput.files.length) {
-        alert('Please select a file first');
         return;
     }
 
@@ -40,7 +39,7 @@ async function uploadFile() {
         sessionId = data.session_id;
         
     } catch (error) {
-        alert('Error uploading file: ' + error);
+        console.error('Error uploading file:', error);
     } finally {
         setLoading(false, 'upload');
     }
@@ -50,7 +49,6 @@ async function submitQuery() {
     const queryInput = document.getElementById('queryInput');
     
     if (!queryInput.value.trim()) {
-        alert('Please enter a question');
         return;
     }
 
@@ -91,7 +89,7 @@ async function submitQuery() {
         }
         
     } catch (error) {
-        alert('Error submitting query: ' + error);
+        console.error('Error submitting query:', error);
     } finally {
         setLoading(false, 'query');
     }

frontend/src/App.js

@@ -17,6 +17,7 @@ function App() {
   const [isProcessing, setIsProcessing] = useState(false);
 
   const handleFileUpload = async (event) => {
+    event.preventDefault();
     const formData = new FormData();
     formData.append('file', event.target.files[0]);
     setError('');
@@ -26,6 +27,9 @@ function App() {
       const response = await fetch('http://localhost:8000/upload', {
         method: 'POST',
         body: formData,
+        headers: {
+          'Accept': 'application/json'
+        }
       });
       const data = await response.json();
       if (data.session_id) {