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Proxy servers are poor alternatives to dedicated VPNs (like NordVPN), since they often have slower speeds, less secure encryption, and lacklustre unblocking capabilities. However, when something doesn’t work as expected, it’s often difficult to tell if the problem lies with the VPN you’re using or some other, less obvious cause.ĭespite claiming to be a VPN, what Opera actually offers is a free proxy its standalone VPN service was discontinued in early 2018. They not only enhance your online security, they also allow you to bypass regional restrictions and use previously inaccessible services abroad. VPNs work by encrypting your traffic and routing it through an intermediary server. There's a chance of future versions of Opera changing ] of window.opera, but that seems to be unlikely.These days, more and more platforms are using geo-blocking to prevent people from outside of a specific country from accessing the service. Oftentimes there are better ways to solve a problem ) In other words, test ] value, not just existence.Īnd of course always think twice before sniffing for browser. Speaking of unrelated global variable, remember that in MSHTML DOM, for example, elements can be resolved by id/name globally this means that presence of something like foo in a markup will result in window.opera referencing that anchor element. This is a more solid test than just checking for window.opera existence, since there's much less chance of some unrelated global opera variable getting in the way and resulting in false positives. This essentially checks that window.opera object exists and its internal ] value is "Opera". In Prototype.js, we use this inference: var isOpera = (window.opera) = ''