Checklist
🐛 Describe the bug
When enabling acceleration for all huggingface.* related domains, the local proxy successfully receives HTTP/2 requests from the browser. But requests forwarded to the upstream huggingface.co return 502 Bad Gateway.
The browser renders a completely blank page. CSS, JavaScript and favicon cannot be loaded. It is impossible to log in or access HuggingFace competition pages.
Troubleshooting I have performed:
- All hugging‑related domains including
cdn.huggingface.co are selected for acceleration
- Watt Toolkit root certificate has been installed
- Multiple acceleration nodes have been tried
- Tested in browser incognito mode, ad‑block extensions disabled
Downloading models in Python with hf‑mirror.com works correctly. However, the mirror cannot replace the official website for account login and competition submission which require origin‑site authentication.
Expected behavior
The proxy forwards requests normally and the page renders completely.
Actual behavior
All requests to huggingface.co get 502 responses, browser page stays blank.
📷 Reproduce Steps
- Open Watt Toolkit, navigate to Network Acceleration, search for
hugging, select all huggingface‑related domains.
- Click "Start Acceleration".
- Open browser incognito tab, visit
https://huggingface.co/, hard refresh with Ctrl+F5.
- Page remains blank. Check application logs, multiple 502 responses can be observed.
📄 Logs
Log path: %Tmp%\Steam++\Logs
🚑 Environment
- CPU Arch: x64
- OS Version: Windows 10 Pro 19045.3570
- Download source: GitHub Releases
- Toolkit version: 3.1.0 for Windows 10 x64
- Self‑contained runtime: Yes
Additional note
Local HTTP/2 handshake completes successfully. The failure happens between local proxy and HuggingFace origin server. Switching acceleration nodes cannot resolve this issue stably.
Checklist
🐛 Describe the bug
When enabling acceleration for all
huggingface.*related domains, the local proxy successfully receives HTTP/2 requests from the browser. But requests forwarded to the upstreamhuggingface.coreturn 502 Bad Gateway.The browser renders a completely blank page. CSS, JavaScript and favicon cannot be loaded. It is impossible to log in or access HuggingFace competition pages.
Troubleshooting I have performed:
cdn.huggingface.coare selected for accelerationDownloading models in Python with
hf‑mirror.comworks correctly. However, the mirror cannot replace the official website for account login and competition submission which require origin‑site authentication.Expected behavior
The proxy forwards requests normally and the page renders completely.
Actual behavior
All requests to
huggingface.coget 502 responses, browser page stays blank.📷 Reproduce Steps
hugging, select all huggingface‑related domains.https://huggingface.co/, hard refresh withCtrl+F5.📄 Logs
Log path:
%Tmp%\Steam++\Logs🚑 Environment
Additional note
Local HTTP/2 handshake completes successfully. The failure happens between local proxy and HuggingFace origin server. Switching acceleration nodes cannot resolve this issue stably.