Experience Cloud – Can showToast Be Used in LWR Site?

Even though it's not mentioned in the documents you linked, it's covered in the following documentation:

• Getting Started with LIghtning Web Components
• Perform Actions on a Salesforce Record from Tableau CRM

As such, lightning/platformShowToastEvent is not supported specifically in Analytics Studio.

Note

If you create a Lightning Web Component that uses Lightning events, the events work when your Tableau CRM dashboard is embedded in Salesforce pages, but not from Analytics Studio. Analytics Studio is a separate Lightning app.

Lightning components that use Lightning events, like force:createRecord or lightning:navigate, are supported in embedded dashboards, but not in Analytics Studio

There is a known limitation of Lightning Locker in LWR sites where the scripts loaded through lightning/platformResourceLoader run in system mode outside of a Lightning Locker sandbox. As a result, the component loading the script doesn’t have access to the same global variable scope as the script itself, preventing it from accessing any global variable set by the script. You can read about it in the documentation as well.

To get around this restriction, we need to implement our own loadScript function. I have created a Pull Request on the LWC Recipes repo that adds this custom implementation to the recipes, and shows its usage in components like libsD3, libsChartjs, and libsFullCalendar.

Please add the resourceLoader component from this Pull Request to your codebase, and use the below import statement to use the loadScript function from the custom resourceLoader module instead of the standard lightning/platformResourceLoader module.

import { loadScript } from 'c/resourceLoader';