HTTP/2 dev server #1027

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1. danielroe

   transferred this issue fromnuxt/nuxton Sep 4, 2025
2. danielroe commented on Sep 4, 2025

   

   danielroe

   on Sep 4, 2025

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   cc: @pi0 - what do you think?
3. ProgramRipper commented on Sep 4, 2025

   

   ProgramRipper

   on Sep 4, 2025

   Last edited by ProgramRipper

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   I patch 2 lines of code and cracklingly impl it:

   https://github.com/unjs/listhen/blob/a5890835cc0a10b3d7befde9cf565d84024e3846/src/listen.ts#L3

   - import { createServer as createHTTPSServer } from "node:https";
   + import { createSecureServer as createHTTPSServer } from "node:http2";

   https://github.com/unjs/httpxy/blob/73d2180e368e80379b6d6681f18e274df1006706/src/_utils.ts#L48

   -   outgoing.headers = { ...req.headers };
   +   outgoing.headers = Object.fromEntries(  // remove http/2 pseudo headers
   +     Object.entries(req.headers).filter(([key]) => !key.startsWith(':'))
   +   );

   and gain even more performance than the reverse proxy solution in the original issue.

   Here is a comparison of waterfall and a random request timing:

   

   I hope this information helps. 😉

   ❤️React with ❤️4Reacted by Daniel Roe, Leo, Jean-Philippe Leclerc and ProgramRipper
4. userquin commented on Sep 4, 2025

   

   userquin

   on Sep 4, 2025

   Last edited by userquin

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   cc: @pi0 - what do you think?

   @danielroe You have the patch for http2 headers and the http2 preset in my private repo (vite-ssg + md3 experiment repo), ping me at discord if required

   EDIT:

   patch for h3

   diff --git a/dist/index.mjs b/dist/index.mjs
   index 3ae960df62debc1840bb0f4d3187f4a402d321e3..3b9701545cba1d957dffede7be1ef1bb6f84da8c 100644
   --- a/dist/index.mjs
   +++ b/dist/index.mjs
   @@ -1816,15 +1816,21 @@ function isEvent(input) {
    function createEvent(req, res) {
      return new H3Event(req, res);
    }
   +function _normalizeHeaderName(name) {
   +  if (name && name.length > 1 && name[0] === ":") {
   +    return name.slice(1);
   +  }
   +  return name;
   +}
    function _normalizeNodeHeaders(nodeHeaders) {
      const headers = new Headers();
      for (const [name, value] of Object.entries(nodeHeaders)) {
        if (Array.isArray(value)) {
          for (const item of value) {
   -        headers.append(name, item);
   +        headers.append(_normalizeHeaderName(name), item);
          }
        } else if (value) {
   -      headers.set(name, value);
   +      headers.set(_normalizeHeaderName(name), value);
        }
      }
      return headers;
5. ProgramRipper commented on Sep 17, 2025

   

   ProgramRipper

   on Sep 17, 2025

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   It looks like we may have to wait for listhen to migrate to srvx.

   👍React with 👍1Reacted by Chris Hatton
6. danielroe

   added the

   Enhancement

   issue type on Jul 25, 2026