CORS blocked

adnan1982 — Fri, 15 Dec 2023 21:49:50 GMT

While trying to setup a simple Web.-to-Phone demo we are failing on the initial stage with an error in browser saying:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://clientapi.sinch.com/ocra/v2/applications/{APP KEY}/instances. (Reason: CORS header ‘Access-Control-Allow-Origin’ missing). Status code: 502.

This happens after we run:

registrationCallback.register("TOKEN value here")

Any ideas how to proceed and make a simple Web-To-Phone app in pure HTML+JS (without npm, or any modern front-end framework).

Regards

Re: CORS blocked

Roland_Ian — Wed, 13 Dec 2023 08:26:07 GMT

Hi,

Can you provide the URL of the demo sample you are using.