Use the Alibaba Cloud Content Delivery Network wildcard domain certificate to match the target website address. The browser prompts the following error when you access a domain name of level 3 or above.
*.aliyundoc.comformat certificate, you can only support wildcard domain names of the current level, such as
aliyundoc.comdomain names. Currently, third-level domain names such as
image.developer.aliyundoc.comcannot be supported, which is a restriction between the certificate authority and the browser.
If you need to use a third-level domain name, you need to use the wildcard domain certificate of the corresponding third-level domain name. If
*.developer.aliyundoc.com, you can support third-level domain names in the form of