Why does the site try to run Flash?

Out of curiosity. I use FF with Flash set to request permission, so I see this often. But when I temporarily enable flash on DL or not, the site appears the same to me. It's apparently not for ads (at least, not that I'm seeing). Does anyone with tech knowledge in this area know why/for what exactly this site is running Flash?


February 7, 2017


Because it used to be the main method of handling the audio functions (especially those involving the microphone) but now HTML 5 can handle these functions but I don't think Duo has not changed yet.

February 7, 2017

On mine they changed it to HTML 5.

March 27, 2017
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