У вашего броузера проблема в совместимости с HTML5
A while back I kept having my xt60 pop off my quadcopters while flying. This cause many grieving crashes. Was looking for an xt60 alternative for a month till one of my friends found a link to an xt60L. This xt60 just has a locking mechanism that works well. Since using it i have never had one pop off mid flight. I know this will help a ton of people
Heres the link to where you can buy the xt60L
https://www.ebay.com/itm/Amass-Deans-TRX-XT60-XT90-XT30U-EC5-EC3-Male-Female-Connector-RC-Battery-Plugs/163077127385?var=462211565278