Getting an error "No 'Access-Control-Allow-Origin' header is present on the requested resource." when posting data to a form


#1

We are getting an error:

Failed to load https://forms.hubspot.com/uploads/form/v2/546765/efada0f1-e2ba-4f28-978d-a2acb7187d69: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'https://trader.tradovate.com' is therefore not allowed access.

When we are trying to post data to a hubspot form. This particular process has been working fine for years and has stopped working at some point after 12:37PM ET today 09/21/2018 (the time of our last successful post to this form)


#3