The spec for this action:
https://www.adobe.com/content/dam/acom/en/devnet/pdf/pdfs/PDF32000_2008.pdf#G11.2111850
An example of a form using this action:
https://www2.illinois.gov/rev/forms/reg/Documents/reg-1-mr.pdf
action = action.get("U");
          }
        }
      }
    }
    if (isDict(action)) {
      const actionType = action.get("S");
      if (!isName(actionType)) {
        warn("parseDestDictionary: Invalid type in Action dictionary.");
        return;
      }
      const actionName = actionType.name;
      switch (actionName) {
        case "URI":
          url = action.get("URI");
          if (url instanceof Name) {
            
            url = "/" + url.name;
          }
          
          
          break;
        case "GoTo":
          dest = action.get("D");
          break;
        case "Launch":