To make an element like <mytag value="something"> which would then be integrated into another angular app, you must use a value-listener. Like this:
const trimOrEmpty = (val: string) => val && val.trim() || '';
/*** the name / label to use in the search field
* usually used when searching in a path, to show the path name
*/
public scopeName:string;
@Input('scope-name') set scope(name: string) {
this.scopeName=trimOrEmpty(name);
}