Cross-Domain AJAX Request, Gatsby to Drupal8

[Perumalposition2]

Hi,

I am new to Gatsby, I am trying to use Gatsby with Drupal8 CMS. Everything is working fine, For the contact form, I am using Webform in Drupal also installed the plugin gatsby-drupal-webform. I can able to fetch the fields from Drupal8 and display it in the contact us page created using Gatsby.

When I submit the form I am getting the error mentioned below. Because Gatsby and Drupal 8 are in different domains. Can anyone help me to solve this. Thanks in advance.

"Access to fetch at 'https://stage.gatsby********.***/webform_rest/submit?_format=json' from origin 'http://localhost:8000' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled."

-Perumal