This isn't really a asp.net problem, but I discovered this while reading its documentation and don't know where to ask this weird question. To know what I am asking about, open this URL https://learn.microsoft.com/en-us/aspnet/core/tutorials/first-web-api?view=aspnetcore-7.0&tabs=visual-studio in two tabs, then in one of the tabs, on the nav bar on the left, go to "APIs > Controller-based APIs > Tutorials > Create a web API with controllers" and open it. You will notice that now the two tabs have the exact same URL, but the navbars in the two tabs show different things. This persists even through refreshes. How can two tabs with the exact same URL show different things even after refreshing both of them?