Dev server no longer crashes mid-serve under Vite bundledDev

Minor Changes

• #14883 76e6014 Thanks @jamesopstad! - Serve the bundled client HTML in dev when Vite's experimental.bundledDev is enabled

  Note that this feature is experimental and subject to change.

Patch Changes

• #14862 c232d05 Thanks @petebacondarwin! - Destroy the client socket instead of crashing when a WebSocket upgrade fails

  If dispatchFetch rejected while a WebSocket upgrade was still in flight (for example when Miniflare is disposed during a dev server shutdown or restart), the error escaped the async upgrade handler as an unhandled rejection. This could terminate the dev server process and leaked the client socket. The upgrade handler now catches such failures and tears the socket down cleanly.

• #14837 de6a951 Thanks @1rgs! - Fix compatibility with Vite's experimental.bundledDev option. Keep Miniflare, containers, and tunnels alive when a build runs in dev.

  The plugin used the buildEnd hook as its signal that the dev server was closing, and tore down its dev resources there. Vite's experimental.bundledDev runs a build pass during serve, which fires buildEnd while the dev server is still live — so Miniflare was disposed (the next request failed with Expected \miniflare` to be defined`), locally-built container images were removed, and any active tunnel was closed, all mid-serve.

  During serve, these resources are now torn down from a patched server.close. We will replace server patching with first-class APIs when they are added to Vite.

• #14851 fb89b72 Thanks @exKAZUu! - Retry transient module-transport failures in the runner worker

  Each fetchModule invoke was a single fetch to the dev server with no retry. If that one fetch failed transiently (e.g. Network connection lost when workerd reuses a loopback connection that Node just closed), Vite's module runner cached the rejection and every request importing the affected module failed for the rest of the dev session. The invoke is an idempotent request for module code, so retry it up to three times before giving up.

• Updated dependencies [773ead4, 773ead4, 09b8a44, 4dfb96e, 1035f74, e426cb9, 3a22ae5, 465c0fb, 465c0fb, e8b3a9d, 552bcfc, b737676, 6e0bf6e]:

  • wrangler@4.115.0
  • miniflare@4.20260722.1