CommandButton confirm dialog throws JS error when page load is slow

[mertsincan]

Reported By PRO User;

having some issues when using p:confirm inside p:commandButton. Problem occurs when the connection to a server is slow (for example through VPN). Please take a look at attached project. You can simulate it through development tools in network tab. Mark checkbox "Disable cache" and set connection next to it to "Slow 3G". Now when you refresh the page and click on "First confirm" button as soon as the view is loaded, then the dialog is not shown and JS error occurs "Cannot read properties of undefined (reading 'DialogHandler')". Problem might be caused because of this optimalization snippet in web.xml:

<context-param>
<param-name>primefaces.MOVE_SCRIPTS_TO_BOTTOM</param-name>
<param-value>true</param-value>
</context-param>

Note: For now, this bug has been fixed with null checks. Structures in core.js that make such component calls in future versions can be moved to a separate section in component.js.