问题
I have deployed my project in Google App Engine, python using API endpoints. The API calls made from AngularJS throws a 503. But when I look through into the admin console it shows the status as 200. If the same API is called once again with same parameters it does not throw an error and it works perfectly fine. The quota limit is set to "unlimited". Attaching the screenshot of the response.
来源：https://stackoverflow.com/questions/43255910/google-app-engine-api-throws-503-but-error-not-shown-in-the-admin-console