Impossible to select Iframe

I've created a new type of component an general iframe, avoiding selecting the map, but when I try to select it in canvas so that the settigns appear it's impossible for me.

This is the component code.

comps.addType('myiframe', {
        model: defaultModel.extend({
            defaults: Object.assign({}, defaultModel.prototype.defaults, {
                'custom-name': "IFRAME",
                tagName: 'iframe',
                src: "",
                traits: ['name', 'id', {
                    type: 'text',
                    label: 'src',
                    name: 'src',
                    changeProp: 1
                }],

            }),
        }, {
            isComponent(el) {
                var result = '';
                if (el.tagName == 'IFRAME' && /http/.test(el.src) && !/map/.test(el.src)) {
                    result = { type: 'myiframe', src: el.src };
                }
                return result;
            },
        }),
        view: defaultType.view,

    });