У вашего броузера проблема в совместимости с HTML5
When I teach Wireshark classes, I commonly get asked, “What do I do when I get back to my desk?”, “What if I can’t span a port, or don’t have a TAP?” I typically show my attendees dozens of “Baselines” that would only take a few minutes to complete. Here’s an example of one of my favorite baselines; Start a capture and analyze whatever you see. No taps, span or mirror ports. read the rest of this and other articles at http://www.garlandtechnology.com/blog/author/tony-fortunato