JavaScript node not resized in WebPortal

Dear all,

I have received a legacy node that plots a chart in Webportal. The chart looks great but the users need to scroll down to see the whole chart. I believed the next lines try to address but they do not work somehow.

// Auto resize view when shown in WebPortal
if (parent != undefined && parent.KnimePageLoader != undefined) {
	parent.KnimePageLoader.autoResize(window.frameElement.id);
}

I also tried to research about the KnimePageLoader. I would appreciate any reference to this too.

Thanks in advance,

Miguel