Update app.py

app.py

@@ -16,7 +16,7 @@ get_window_url_params = """
         return [text_input, url_params];
         }
     """
- set_window_url_params = """
+set_window_url_params = """
     function(text_input, url_params) {
             const state = {text_input:text_input}
     	    const queryString = '?' + new URLSearchParams(state).toString();