diff --git a/posts/everthing-I-know-web.md b/posts/everthing-I-know-web.md index 452888e..d2cf555 100644 --- a/posts/everthing-I-know-web.md +++ b/posts/everthing-I-know-web.md @@ -63,11 +63,60 @@ Now you may be wondering? Anyways. +### HTTP body + +The HTTP body is the main content of a response. + +The file content, the API respose, etc. + ### HTTP trailers HTTP trailers are pretty obscure. If they weren't used for [Server-Timing](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Server-Timing) debugging information (based on MDN) and gRPC nobody would use them. +My understanding is that they are HTTP headers which in the TCP/TLS/QUIC socket connection come after the HTTP body + ## HTML +Platonically ideal HTML exists to communicate content in a way which computers can understand which web browsers then translate into something humans can interpret and interact with. +HTML is a text format which looks like the following. + +```html + + + + + +

hello

+ + +``` + +I am not going to go into the details of every single tag, all I'll say is that barring tags like `div`, `span` and anything custom, tags generally convey useful information about their contents which are mainly used by screen readers and search engines but can be used by anything else. + +I will try to explain my understanding of `head` and `body` though + +### The `head` Tag + +The `head` tag is for information which doesn't exist primarily to be shown in the main view. + +It has the web page's title, various metadata for things like RSS feed(s), the text encoding being used, CSS stylesheets and social media embed information. + +That isn't to say you can't make stuff in `head` visible in the main view or that all of those things can only be done in `head`. +However you shouldn't make stuff in `head` visible in the main view and should do those things in `head` if you can. + +There are situations where that isn't an option but those situations involve needing to run code when the page is done loading and have the page work on old browsers. +Reason that trick would be necessary is that browsers will (barring certain element attributes) process HTML in the order it appears in. + +### The `body` Tag + +The `body` tag is where all the fun human visible stuff should go. + +That doesn't mean it's all visible to humans though. + +### HTML is not XML + +Forgetting that will lead to footguns like `