I don't know if it is possible, but I have read that while a user is viewing a video, the location of user can be traced without sharing its knowledge to the user. Even when user has disabled the option to allow tracking for websites. Is it possible? If yes how?
The streaming server needs to know where to send the video to, thus it is aware of your IP address.
Using this IP address, your estimated position can be requested from a so-called geolocation database (which connects networks to locations). This usually is not accurate to street or house level, but most of the time at least resolves the city and country you're in.
You can only prevent this using a proxy or VPN server, so your actual IP address is hidden behind it (and you will be located around wherever the proxy is located physically).