101 - Switching Protocols 1xx Informational The HTTP Status 100 (Switching Protocols) means that the client has asked the server to change protocols and the server has agreed to do so. Note that when a Status 101 is returned the server must generate an Upgrade header in its response indicating which protocol it has switched to.What is the 101 (switching protocols) status code?
The 101 (Switching Protocols) status code indicates that the server understands and is willing to comply with the client’s request, via the Upgrade header field, for a change in the application protocol being used on this connection.What should I do when a status 101 is returned?
Note that when a Status 101 is returned the server must generate an Upgrade header in its response indicating which protocol it has switched to. Also note that the server should only accept switching protocols (and thus return Status 101) when it's advantageous to do so, such as when it upgrades to a newer version of HTTP.What is an HTTP status code list?
List of HTTP status codes. Status codes are issued by a server in response to a client's request made to the server. It includes codes from IETF Request for Comments (RFCs), other specifications, and some additional codes used in some common applications of the Hypertext Transfer Protocol (HTTP).