PDF.js error: Failed to fetch when opening any file in ChatDOC

[hzphzp]

Description

When using ChatDOC, every file fails to open with an error from PDF.js. The PDF preview does not load at all.

Error message:

PDF.js v2.13.217-alpha.114 (build: 2046b8dac)
Message: Failed to fetch

Steps to Reproduce

1. Open any document / PDF in ChatDOC
2. The error above appears every time, regardless of the file

Environment

• OS: macOS
• Browser: (e.g. Chrome / Safari / Firefox)
• Using proxy / VPN / corporate network: N/A
• Reproducible in incognito mode / with extensions disabled: N/A

Additional Information

• This issue is not limited to a specific PDF — it happens with every file.
• If helpful, I can provide Network panel screenshots showing the failed requests (status code, CORS, blocked, etc.).

Thanks for looking into this.