title: ERROR: No 'Access-Control-Allow-Origin' header is present WordPress
body: <p>I am working on a wordpress website and I have installed mautic plugin into the website. Now issue is that I am getting the following error in the console. Cloud flare is also enabled.</p>
  <p>Access to XMLHttpRequest at 'https://mautic.my-domain.com/mtc/event' from origin 'https://www.my-domain.com' 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.</p>
  <p>I have tried different solutions for the issue but never get rid of this error.
  I have tried by removing the trailing slash (/) from the domain name.
  I have also used the &quot;<strong> Header set Access-Control-Allow-Credentials: true Header set Access-Control-Allow-Origin 'https://www.my-domain.com' </strong>&quot;</p>
  <p>I have read many threads here at stack overflow, github and mautic forum but Still looking for the solution. Please help in this regard and thank you in advance</p>