Set GBL043 (Module: Common and Submodule: Global Settings) to True to reduce the time taken to load SFM delivery for the first time.

If you set GBL043 to True, then you must whitelist the SFM base URLs to allow code (such as JavaScript) running in a Web browser to communicate with Salesforce from a specific origin. By default, the setting value is False.

To whitelist SFM base URLs, launch the delivery page and copy the base URL from the Web browser and add in the CORS list. While adding URL in the CORS, add the URL with wildcard characters. For more information, see Salesforce documentation.

If you set GBL043 to True and do not whitelist SFM base URLs by adding them to the CORS list, then SFM delivery page will not load.

When GBL043 is set to true, interactive SFM on save will invoke Rest API calls.