webdev.complete
🌐 The Web Beneath
📨
Chapter 23

HTTP Deep Dive

Methods, the status code zoo (404, 500, all of them), headers, MIME types, caching.

3 lessons
~1.3 hr
1
Methods & The Status Code Zoo
GET, POST, PUT, PATCH, DELETE. 200s through 500s. When to return what.
2
Headers, MIME Types, Caching
Content-Type, Cache-Control, ETag, the negotiation dance.
3
Cookies, CORS, Same-Origin
Where cookies live, why CORS fails, how to fix it.