Core idea: For search engine visibility, controls can be created from static HTML pages created by any means (an HTML authoring tool, a CMS, etc.) by marking up HTML tags and then “rehydrating” them into live controls.
The rehydrate() function looks for any elements with the data attribute “data-control”. The value of this attribute should be the string name of a QuickUI control class; this will be the class of the control from the HTML element.
There are three ways to set properties on a control during rehydration:
Your goal: Update the static HTML so that the Cancel button’s disabled() property is set to true when the control is rehydrated. Use either method #1 or method #2 above.