Update app.py

app.py

@@ -28,7 +28,7 @@ def run_script(text: str):
             driver.set_window_size(1920, 1080)
             screenshot = driver.get_screenshot_as_png()
         except WebDriverException as e:
-            return [Image.new('RGB', (1, 1)), 'operation failed.']
+            return [Image.new('RGB', (1, 1)), e]
         #finally:
         if driver:
             driver.quit()