Your comments

I just checked a second ago and the 'ss' method is working again. I'm not sure what has happened. I've tried several links and they all work.

No, I just meant that as a workaround, I could paste the links without the 'ss' to the website and download the videos that way instead. I much prefer to use the 'ss' method since I don't have to copy the youtube link and then paste it to the website.

Browser: Chrome 53.0.2785 Windows 10 User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.89 Safari/537.36

I'm in the United States.

Sample Links:

It seems that none of the links with 'ss' work. As a workaround, I was able to paste the links to the '' website and download the videos successfully.