Fix Geojson Parsing

app.py

@@ -63,10 +63,11 @@ def _process_spatial_data(data_bytes: BytesIO) -> gpd.GeoDataFrame:
             input_gdf = gpd.GeoDataFrame.from_features(features, crs="EPSG:4326")
         except Exception as e:
             raise ValueError(f"Failed to process KML data: {e}")
-    # Otherwise, assume it's a format geopandas can read
+    # Otherwise, assume it's a format geopandas can read from databytes
     else:
         try:
-            input_gdf = gpd.read_file(data_bytes)
+            geojson_str = data_bytes.read().decode('utf-8')
+            input_gdf = gpd.read_file(geojson_str)
         except Exception as e:
             raise ValueError(f"Failed to read GeoJSON or other vector data: {e}")
     return input_gdf