Shortly - not in Mathematica
In desktop Mathematica there isn't any built-in way to display an embedded web page.
Wolfram Cloud notebooks support EmbeddedHTML
and your example will work just fine as this is ultimately handled by the browser.
EmbeddedHTML
will preserve the content as raw html instead of showing a string output in your deployed page or in a cloud notebook. Then the browser can take care about fetching img's
src
.
Workarounds in Mathematica
You can fetch it as XML
and provide a custom typesetting.
Or you can try to use tools for e.g. web screen shots: Web Browser Screen Shot
In your case where the source is a .png file, just import it. If you don't want to store it you can use this: How to place an image inside a notebook, with the minimum memory footprint?\
EmbeddedHTML
is a structure used for cloud documents. On the desktop there is no support for embedding a webpage as would be done in a browser. If you just want the image you linked you can download it withImport
. $\endgroup$