Use visual studio to write a problem that cannot be previewed

[29jimmy]

I have solved the problem by myself
Thank you everyone XD

Method from here:

CORS issue with ShapeDiver API

Sure. [fail_load_preview] Fail to get response, and failed to see Preview of it. Maybe header information might be more helpful. Error one from AWS instance: [error_head] No Error, I got response, too. from localhost:8000 [no_error_local]

CORS issue with ShapeDiver API

We have configured CORS to allow the loopback address (127.0.0.1) for local testing, but general IP addresses are not allowed. Please use a hostname which resolves to your IP address.