Priority: HTTP header or meta tag?
From YADIS Specification 0.9:
6.2.6 Resource Descriptor URL
If the response includes both an X-YADIS-Location response-header and an HTML element whose http-equiv attribute is X-YADIS-Location, either value MAY be used as the the YADIS Resource Descriptor URL.
- Note: It is the intent of the YADIS Project to specify which URL should be used in this case. We invite suggestions and rationales from implementers.
So, which is it folks?
Accepting the argument by Larry Drebes, the response-header takes priority.