CORS for Squarespace API: What Actually Works
If you’re trying to call the Squarespace API from browser JavaScript, you’ll run into CORS fast. That usually looks like this: fetch("https://api.squarespace.com/1.0/sites", { headers: { Authorization: "Bearer YOUR_TOKEN" } }) And then the browser smacks you with a CORS error. The annoying part is that your token might be valid, the endpoint might be correct, and the API might work perfectly in cURL or Postman. But the browser still blocks it. That’s not a Squarespace bug. That’s the browser enforcing Cross-Origin Resource Sharing. ...