Purpose
Reload a web page, optionally ignoring the cache

Solution
To reload the page, possibly from browser cache, use

GuiXT 
connectHTML name="..." callDevTools="Page.reload"

To reload the page ignoring the cache, use

GuiXT 
set text[chrome_parms] "{""parameters"":{""ignoreCache"":""true""}}"

connectHTML name="..."  callDevTools="Page.reload" jsonInput="chrome_parms"

If you need further connectHTML commands for this WebView, execute

GuiXT 

connectHTML name="..."  -reconnect

 first, since the page reload terminates the connection to GuiXT.

Components
 InputAssistant + Controls