Unable to get screenshot of Rich Text Area Field which contains images html2canvas

Access to Image at xxx site from origin xxx site has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin xxx site is therefore not allowed access.

1 Answer 1


The CORS standard, implemented in the browser generates this error.

To fix the issue, include the following in your header block.

   <script runat=server>

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