leaflet ionic 2 bind click on popup using attribute data-click

click.ts

constructor(public navCtrl: NavController,
                public platform: Platform,
                private iab: InAppBrowser,
                private elementRef: ElementRef,
                private renderer: Renderer,
                ) {
        this.platform = platform;
        this.elementRef = elementRef;
        this.renderer = renderer;

        renderer.listen(elementRef.nativeElement,'click',(event) => {
            let element = event.target as HTMLElement;
            if (element.tagName.toLowerCase() === "a") {
                let l = element.getAttribute("data-click");
                if(l != null) {
                    console.log(l);
                    this.launch(l);
                }
            }
        });

    }

    public launch = (url) => {
        this.platform.ready().then(() => {
            let options = 'location=yes,toolbar=yes,hidden=no';
            const browser = this.iab.create(url); //,"_blank", options);
            browser.show(); 

        });
    };
    
    
   //////////////////////////////////////
   //per il popup di leaflet:
               let popup = layer.bindPopup("<strong>"+feature.properties.popupContent +
                "</strong><br><a data-click='http://www.example.com' href='#'>Link</a>");