Access-Control-Allow-Origin error in Speckle.Viewer dev

Hello,

We’re developing a viewer with Speckle.viewer, everything is going perfectly, I hope to be able to show it soon…
But… I’ve just reopened the code this morning, without any modification, the Speckle model is no longer displayed (it was working yesterday), I get this error in the console:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://app.speckle.systems/objects/822d62f005/28324356a300058f87fc1338f0f436f7/single. (Reason: CORS header ‘Access-Control-Allow-Origin’ missing). Status code: 503.

Indeed I’m loading a model hosted in the Speckle server like this :

const urls = await UrlHelper.getResourceUrls(
    "https://app.speckle.systems/projects/822d62f005/models/a4df66f1ab"
  );

I understand that this may be due to server authorizations. Is this possible?
Thanks

Edit : it may have been related to this : https://speckle.community/t/3d-viewer-in-browser-not-displaying-models/
And it’s now working, thanks