Error after Form submission (Hubspot, Webflow)

Hello everyone.

I am experiencing the following error message:

access to xmlhttprequest at ‘’ from origin ‘’ has been blocked by cors policy: the value of the ‘access-control-allow-credentials’ header in the response is ‘false’ which must be ‘true’ when the request’s credentials mode is ‘include’. the credentials mode of requests initiated by the xmlhttprequest is controlled by the withcredentials attribute.

This error is generated after a form is submitted on the website. I have contacted both the Hubspot and the Webflow Support but I’d like to hear the webflow community insights or advices. Any Webflow or Hubspot expert here to help out?