I keep seeing Bing in my optional updates. It gives a little information but I'm still confused. Bing Desktop sets the daily Bing photo as the desktop background and adds a floating search bar. It DOES change the background daily.. Windows 10 Pro - Start10 - part of a local network which is a '3rd party optimizer-free' zone..
2.2.4 HTTP OPTIONS Response. After receiving an HTTP OPTIONS request, a server responds with an HTTP OPTIONS response that specifies the protocol versions it supports.
To show the response of HTTP request to a specific server, you can use the  curl-i  command. Example: Update: Thanks Robin Clowers for the update. Related posts: 1  Show HTTP response using curl command. 2  How to only show respond header with curl command.