js = ""

app.py

@@ -956,12 +956,6 @@ title_html = """
 
 css = make_progress_bar_css()
 js = """
-window.addEventListener("beforeunload", function (e) {
-    var confirmationMessage = 'It looks like you have been editing something. If you leave before saving, your changes will be lost.';
-
-    (e || window.event).returnValue = confirmationMessage;
-    return confirmationMessage;
-});
 """
 block = gr.Blocks(css=css, js=js).queue()
 with block: