Script Tags Transformed to Fetch Calls
Lightning Web Security (LWS) transforms <script>
tags into fetch
calls. LWS downloads the script to evaluate it in the sandbox.
To enable the fetch
calls to succeed:
-
Configure the
connected-src
CSP directive on the Salesforce site where the component runs to allow access to the script resource server. See Manage Trusted URLs. -
Configure the resource server with cross-origin resource sharing (CORS) to add the origin of the Salesforce site to its allowed origins list. The component can then access server resources.