Users encounter errors when uploading images from Rich Text Areas or components such as User Profile and Case Comments Publisher in Experience Cloud sites if Allow access to standard Salesforce pages is disabled. This setting controls whether the Experience Cloud site can access standard Salesforce pages, which are required for the file upload routing process. When this setting is disabled, image uploads cannot complete successfully, resulting in the error "There was a problem uploading the file."
To resolve image upload errors in an Experience Cloud site, enable the Allow access to standard Salesforce pages setting.
Enabling this setting allows access to standard Salesforce pages within the Experience Cloud site. If this setting was previously disabled intentionally, evaluate the security and access impact of enabling standard page access before applying the change. It is recommended to test this change in a Sandbox environment before enabling it in Production.
Additional Information:
When this setting is disabled, related issues such as Experience Site: Clicking on Printable View from the list view redirects to "URL No Longer Exists" page may also occur.
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