Can’t pass ‘legacy' URL parameters to root url (/:Type_ID) anymore?

The example in this guide no longer appears to work: (8.1.45) - am I crazy?


Page loads fine if remove the parameter (just leave /), and also works fine with a nested path: /subPath/:Type_ID but breaks with /:Type_ID

I’m aware of (and prefer/am using) ‘modern’ page.props.urlParams, but I’m relying on ‘legacy’ url parameters to support pre-exitsting menu navigation methods without opening a new tab.