Update app.py

app.py

@@ -18,7 +18,7 @@ def image_download_button(pil_image, filename: str, fmt: str, label="Download"):
     
     pil_format = "JPEG" if fmt == "jpg" else "PNG"
     file_format = "jpg" if fmt == "jpg" else "png"
-    mime = "image/jpeg" if fmt == "jpg" else "image/png"
+    mime = "image/jpeg/?target=external" if fmt == "jpg" else "image/png/?target=external"
     
     buf = BytesIO()
 
@@ -65,7 +65,7 @@ if uploaded_file is not None:
             st.image(img_output)
             uploaded_name = os.path.splitext(uploaded_file.name)[0]
             image_download_button(
-                pil_image=img_output + "/?target=external",
+                pil_image=img_output,
                 filename=uploaded_name,
                 fmt="png"
             )