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The Windows webui downloader passed "https://huggingface.co" as the host name, because split_url() cut the path off but kept everything before it, scheme included. WinHttpConnect takes a bare host, so every --webui start died with reading the webui version marker failed: WinHttpConnect(https://huggingface.co) failed: 12005 12005 is ERROR_WINHTTP_UNRECOGNIZED_SCHEME. The host now starts after "://", and the path length is measured from there. Verified on Windows 11 + RTX 5090 Laptop: 72 webui files (12 MiB) installed, GET / returns 200. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Starting the server with
--webuifails on Windows before the port is opened:12005isERROR_WINHTTP_UNRECOGNIZED_SCHEME.split_url()cuts the path off the URL but keeps everything before it, so the scheme travels into the host name;WinHttpConnecttakes a bare host. Every--webuistart hits this, so the auto-download path has probably never run on Windows.The fix starts the host after
://and measures the path length from there. No other behaviour changes.Verified on Windows 11 x64, RTX 5090 Laptop (
sm_120a), CUDA 13.2, MSVC, Ninja + vcpkg manifest, built fromcometkim/dev@024f6a94:downloading latest webui (version 1789652224694)→72 webui files (12 MiB) installed,GET /returns 200 and the UI loads.Unrelated to this PR, two things I hit on the same laptop while testing that branch, in case they are useful — happy to open separate issues:
--kv-dtype hq-e8-2breturns wrong output on this card even at ~20-token prompts (17*23→ 390,123+456→ 57), whileint8andnvfp4answer correctly on the same artifact; with--spec mtpit does not start at all (cudaErrorGraphExecUpdateFailure). GB203 has 82 SMs against the desktop part's 170, which is where I would look first.--spec mtp --draft-tokens 6|7is accepted by the parser ([1,7]) but rejected at startup bykMtpDecodeMaximumDrafts = 5insrc/models/qwen3_5/program/round_buffers.h.🤖 Generated with Claude Code