json-response-with-cors

JS: return JSON Response with CORS headers. Standard CF Worker API pattern.

Body

const jsonR=(d,s=200,x={})=>new Response(JSON.stringify(d),{status:s,headers:{"content-type":"application/json;charset=utf-8","cache-control":"no-store","access-control-allow-origin":"*",...x}});\nconst err=(msg,s=400)=>jsonR({error:msg},s);\nconst corsPreflight=()=>new Response(null,{status:204,headers:{"access-control-allow-origin":"*","access-control-allow-methods":"GET,POST,OPTIONS","access-control-allow-headers":"content-type,x-admin-secret"}});

Provenance

Execute via API

POST /api/execute
{ "ref": "reg_sk_json_cors" }
// or by hash prefix:
{ "ref": "6f27b03699d85b95" }

Resolves this artifact by hash — deterministic, provenance-proven. Generation cost is zero when the hash exists.

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