检测是否在Webapp上启用了UDP或TCP

Question

我如何检查我的Web应用程序中是否启用了udp和tcp，我想我需要使用JavaScript进行检查，但是我不知道从哪里开始。

Answer 1

Why are you asking exactly? Could you further elaborate your question?

TCP and UDP are standard networking protocols and they are very unlikely to be disabled. When you are make AJAX requests using the standard APIs the browser will most likely use HTTP which sits on top of TCP (though there are some Google protocols that might work different). But this is besides the point, you do not have to worry about these underlying protocols unless you are doing something really complicated.