Alibaba Cloud CDN may return error messages in specific scenarios. You can visit the API Error Center to troubleshoot errors. This topic describes how to identify the causes of errors if you do not receive error messages and provides suggestions on how to fix the errors.
For a list of error codes, visit the API Error Center.
Purchases and billing rules
Service unavailability and exceptions
Domain name management and resolution
Back-to-origin routing and origin servers
Why do users fail to access my domain name by using cross-origin resource sharing (CORS) and trigger the following error message: The "Access-Control-Allow-Origin" header has a value "xxx" that is not equal to the supplied origin?