Oh - yeah, I had forgotten about that. Whenever I click the "submit" button on the authorization endpoint form on the oxauth-rp home.htm page, I get an error message next to the 'claims' textbox: "Invalid JSON format". I tried adding random JSON strings to it (like {"sub"}, {["sub"]}, {["sub": "bob"]}); the only thing it would accept was an empty object {}. Is that what I'm doing wrong? What's supposed to go here? I can't find any documentation about this parameter, and it appears to be required.