I am experiencing difficulties with embedding a video in my HTML file. I attempted to use a YouTube video, but when I open it in my browser, it displays an error message stating that the video is unavailable because YouTube has refused to connect. I also tried attaching a .mov video from my computer, but that did not work either. Below is the code snippet I used for the YouTube video in my HTML:
<iframe width="560" height="315" src="https://youtu.be/u9fftcQGSa0"
frameborder="0" allow="accelerometer; autoplay; encrypted-media;
gyroscope; picture-in-picture" allowfullscreen></iframe>