Using
https://www.windy.com/-Embed-widget-on-page/widgets?

Is no longer working in several websites, notably a Mediawiki site (using iframepage extension) and on a weebly site.

It was working 2 weeks ago, the sites were not changed, but now the embedded code refuses to work.

Here's the code:

@ivo love the satellite feature, your product is awesome and I’m very happy to support it