URL 中的尾部斜杠是什么意思？

Question

So, there are a ton of questions here on SO about trailing slashes (help me remove, help me add, and so on). Mine relates to "help me remove" with an additional, "what is causing them?"

I have a nodejs + expressjs powered web site behind an nginx proxy. I have URLs without any trailing slashes, and yet, the browser is adding a trailing slash even though the Chrome/Safari developer tools or Firebug show the request without a trailing slash. So, in the debug tools I can see the request made (as intended) to http://localhost:3000/resource?id=resource_id but in the browser address bar that shows up as http://localhost:3000/resource/?id=resource_id

As mentioned above, I would like to not have the trailing slash added by the browser, and two, I would like to understand why that is happening in the first place.

Answer 1

tl;dr This link might be helpful.

Historically, it's common for URLs with a trailing slash to indicate a directory, and those without a trailing slash to denote a file.

To remove trailing slashes via nginx simply add following statement inside your virtual host file in the server {} block configuration:

rewrite ^/(.*)/$ /$1 permanent;