AEM 6.5.15 | Persistent Queries not fetching results

I am using AEM 6.5.15 and have configured a content fragment configuration and model under my site for persisted queries. I saved a query via GraphiQL editor and am able to execute the same via the editor successfully. But when i execute the same using below URL, it is resulting empty results.

https://localhost:4502/graphql/execute.json/<my-site>/tagged-cf-test%3Blocale%3Dabc-app%3Alocales%2Ffr_CA%3B

(fetching the content fragments on the basis on custom locales tags I have created).

Please help in case i have missed any configuration.

P.S I have already configured my graphql endpoint in CSRF filter list.