If request has a method (e.g. OPTIONS) that can be satisfied by general code of web server then a successful response is sent; may deny access by sending a specific error message (e.g. access unauthorized) that usually forces the client browser to ask human user to provide required Endanwender credentials; https://spencerllgar.liberty-blog.com/28133245/5-wesentliche-elemente-für-website-monetarisierung