Calling the API interface returns HTML code, and when calling the interface to retrieve all sources, error 503 is reported

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I currently have a requirement to operate Airbyte through API, and I am deploying Airbyte based on Docker

This is the document I have reviewed: https://reference.airbyte.com/reference/start

I deployed it locally myself, so my interface base address is localhost

When I call the Health Check interface, it returns a string of HTML code, indicating that I need to use JavaScript code
I am certain that the request is normal, returning 200

When I tried to call the "Trigger a sync or reset job of a connection" API, I returned 405 error and confirmed that all parameters were passed

The following is the code I called