backdrop-filter: blur() 在 8.27.0 版 (Chromium 145 回退) 以来可在 PDF 中渲染空白区域

Gotenberg 8.27.0 silently broke PDF rendering of CSS backdrop-filter: blur() when upgrading from the :8 floating tag. Pinning to 8.26.0 resolves it. Likely a Chromium 145 headless regression.

Bug Report: backdrop-filter: blur() broken in PDF rendering since Gotenberg 8.27.0

1. Versions

• Broken: Gotenberg 8.27.0 (ships Chromium 145)
• Working: Gotenberg 8.26.0 (ships Chromium 144.0.7559.96, Debian trixie)
• Docker tag that triggered the issue: gotenberg/gotenberg:8 (floating tag) — auto-pulled 8.27.0 without explicit upgrade

2. Environment

• OS: Ubuntu, kernel 6.8.0-100-generic (x86_64)
• Docker: v29.0.2 (build 8108357)
• Deployment: Docker Compose on Hostinger VPS
• Docker image: gotenberg/gotenberg:8 (floating), later pinned to gotenberg/gotenberg:8.26.0
• Caller: n8n workflow via HTTP Request node (v4.2)

3. Symptoms