# English

This is a detailed document describing HTTP/2 ([RFC 7540](https://httpwg.github.io/specs/rfc7540.html)), the background, concepts, protocol and something about existing implementations and what the future might hold.

See <https://daniel.haxx.se/http2/> for the canonical home for this project.

See <https://github.com/bagder/http2-explained> for the source code of all book contents.

## CONTRIBUTING

I encourage and welcome help and contributions from anyone who may have improvements to offer. We accept [pull requests](https://github.com/bagder/http2-explained/pulls), but you can also just file [issues](https://github.com/bagder/http2-explained/issues) or send email to <daniel-http2@haxx.se> with your suggestions!

/ Daniel Stenberg


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# Agent Instructions: Querying This Documentation

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
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The question should be specific, self-contained, and written in natural language.
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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
