move the parameter root_path at the launch method

app.py

@@ -24,7 +24,7 @@ def main():
     class_names = config['dataset'][config['dataset']['name']]['class_names']
     data_dir = os.path.join(config['dataset']['path'], config['dataset']['name'])
 
-    with gr.Blocks(theme=gr.themes.Glass(), css=css, root_path='/') as demo:
+    with gr.Blocks(theme=gr.themes.Glass(), css=css) as demo:
         # Main App Components
         title = gr.Markdown("# Saliency evaluation - experiment 1")
         user_state = gr.State(0)
@@ -284,7 +284,7 @@ def main():
             redirect, js="window.location = 'https://marcoparola.github.io/saliency-evaluation-app/end'")
 
         demo.load()
-    demo.launch()
+    demo.launch(root_path='/')
 
 if __name__ == "__main__":
     main()