Is it possible to launch angular2 cli 4.0 into an iframe on a website, in order to have a preview of angular2 components? I would be grateful for an answer to this question.
You could run an angular app and load it into iframe. In your app, you should create a route where only one component will be visible. Then you can load it into iframe in the other website.
Example: your component would be available at http://localhost:4200/components/card
and then on your website, you can load it like this:
<iframe src="http://localhost:4200/components/card></iframe>
Lets say you angular app is hosted at http://localhost:4200 which is the default url when you run the app with ng serve
Just add <iframe src='http://localhost:4200'> in you web app and angular app will be loaded inside you website.