Update app.py

app.py

@@ -450,12 +450,26 @@ with gr.Blocks(title="Bangla Book Recommender") as demo:
 
 
 if __name__ == "__main__":
-    # Gradio 6.x enables Server-Side Rendering (SSR) by default, which
-    # performs a localhost reachability check. Inside HF Space containers
-    # localhost is not accessible, causing launch() to raise:
-    #   "When localhost is not accessible, a shareable link must be created..."
+    # Launch parameters chosen to work on Hugging Face Spaces:
     #
-    # Disabling SSR sidesteps the check entirely. The app still renders
-    # correctly client-side. The error message itself recommends this fix:
-    #   "to disable set `ssr_mode=False` in `launch()`"
-    demo.launch(ssr_mode=False)
+    # - server_name="0.0.0.0": binds to all interfaces, required so the HF
+    #   container's reverse proxy can reach the app.
+    #
+    # - server_port=7860: HF Space's expected port.
+    #
+    # - share=True: on HF Spaces this is ignored with a benign warning
+    #   ("Setting share=True is not supported on Hugging Face Spaces"),
+    #   but its presence bypasses Gradio's localhost-reachability check
+    #   that otherwise raises:
+    #     "When localhost is not accessible, a shareable link must be
+    #      created. Please set share=True..."
+    #   This is the documented workaround in HF forum threads on this bug.
+    #
+    # - ssr_mode=False: disables Server-Side Rendering, which has its own
+    #   localhost check in Gradio 5/6 that conflicts with the Space sandbox.
+    demo.launch(
+        server_name="0.0.0.0",
+        server_port=7860,
+        share=True,
+        ssr_mode=False,
+    )