Update app.py

app.py

@@ -22,7 +22,7 @@ def main():
 
     header_array = json.loads(header_list)
     for key, value in header_array.items():
-        options.add_argument('--header="' + key + ': ' + value + '"')
+        options.add_argument(f'--header="{key}: {value}"')
         
     driver = webdriver.Chrome(options=options)
     driver.get(target_url)