@Community Alums 

GlideRecord won't work on portal

Also your variable should be of type HTML and not Rich Text

So here is the workaround

1) use onLoad catalog client script + GlideAjax

2) that script include function will return the HTML and you can set it directly in that variable and make that variable read-only

If my response helped please mark it correct and close the thread so that it benefits future readers.