Steps to replicate the issue (include links if applicable):
- enter the SPARQL endpoint of any Wikibase Cloud instance
- execute a federated query with WDQS (e.g. https://tinyurl.com/23gsjs3b)
What happens?:
- the query immediately fails with this message: Unknown error: Service URI https://query.wikidata.org/sparql is not allowed
What should have happened instead?:
- the query should work normally
Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):
Other information (browser name/version, screenshots, etc.):
- In https://github.com/wbstack/queryservice/commit/5c0f82c933008a5d097352c345815fbad29af2c5 there is a statement "The allowlist determines which query services can be used for federated queries. This list is provided at runtime by mounting a newline-delimited text file of endpoints to /wdqs/allowlist.txt. It should include all instances hosted by Wikibase Cloud." Maybe this is not working correctly.