html-template-nodes

Authoring reference for Fused canvas HTML template nodes — the .html file in a canvas folder that renders as a sandboxed iframe with window.fused (fused.params, fused.runPython) and $param / {{udf}} substitution. Use when creating, editing, debugging, wiring, or sharing an HTML node, when a page needs to read canvas params or call a canvas UDF from JavaScript, or when deciding between an HTML node, the JSON-UI html widget, the iframe widget, and a Python UDF that returns HTML.