iFrame for GPT-2 Model Page on "Transformer Architecture" blocked

On the page [Transformer Architecture](https://huggingface.co/learn/llm-course/chapter1/6?fw=pt) there is an iFrame that is supposed to embed the model card for the [GPT-2 model](https://huggingface.co/openai-community/gpt2). This is not working, because the web server for the "huggingface.co" is configured to block iFrames. The error on the dev console is:

`**chromewebdata/:1** Refused to display 'https://huggingface.co/' in a frame because it set 'X-Frame-Options' to 'deny'.`

Here is a screenshot in the browser. I tried multiple browsers before I discovered it was a server side issue.

Not a huge deal, but it distracted me trying to figure out what I was doing wrong during the course.