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HTTP & Web Sockets

Written by Cody Lindley updated

Overview:

HTTP and Web Sockets specifications, learning resources, and tools.

Definitions:

HTTP: Hypertext Transfer Protocol is an application-layer protocol for transmitting hypermedia documents, such as HTML. It was designed for communication between web browsers and web servers.
CORS: Cross-site HTTP requests are HTTP requests for resources from a different domain than the domain of the resource making the request (e.g., using JavaScript, an HTTP request is made from http://domainA.com to http://domainB.com that would otherwise be blocked due to cross-site scripting limitations but is possible due to CORs).
Web Sockets: A protocol that allows for a persistent TCP connection between server and client so they can exchange data at any time (e.g., The server can reach out to the client to invoke a change v.s. the client only being able to request changes).

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