put https://example.com/v2/account/approved-domain
Approve a domain for web forms (Adyen only)
NOTE: Domains are not shared between the LIVE and TEST credentials. You should add test and developer domains using your test credentials and add live domains with your live credentials. Domains are required to be HTTPS.
NOTE: A local HTML file or even "localhost" as the domain will not work for testing. It will need at least a schema, top level and second-level domain and must use the HTTPS protocol. For testing it can be fake and local to just your host file. For example, https://my-adyen-test.com would be valid for testing. Also, wild card domains are not allowed, you will need to enter every sub-level domain individually (this is not our own restriction but a restriction given to us by Adyen).