If the login page is located at a location that requires authc the login page will be loaded but any other content on the page will not (e.g <link> css files or <script> js files). After successfully logging in I will be redirected to one of these files (but the user is logged in).
saves the last request that wasn't the login page.
Would it not be more appropriate to save the request that first triggers the display of the login page, or not display the login page i.e. dont make it a special case, so you never end up in this situation in the first place.