UI action to create a child incident & the need for recognizing special characters

var incident =new GlideRecord('incident');
incident.parent= current.sys_id;
incident.parent_incident= current.sys_id;
incident.cmdb_ci= current.cmdb_ci;
incident.category= current.category;
incident.short_description= current.short_description;
incident.description= current.description;
incident.caused_by= current.caused_by;
var newIncidentSysID = incident.insert();
 
gs.addInfoMessage('Incident '+ incident.number+' created.');
action.setRedirectURL(incident);