Bug Description

Hello, I have seen an issue with this bug being closed yesterday. However, despite updating my n8n instance to the latest version I am still seeing it.

Bug : DOMMatrix not defined Concerned node : Default data loader Current n8n version : 2.25.6 (Self Hosted)

<img width="1088" height="769" alt="Image" src="https://github.com/user-attachments/assets/cc4af168-60a8-4b26-ab1a-8da202d51449" /> <img width="740" height="385" alt="Image" src="https://github.com/user-attachments/assets/a1e753ab-3a32-4b76-a745-3f8370fb0e17" />

To Reproduce

Feed a PDF into a indexer node (using database of your choice) while using the default data loader node to get the pdf binary Default data loader node answers with "DOMMatrix not defined"

Expected behavior

PDF is loaded into vectorial database of your choice

Debug Info

Debug info

core

• n8nVersion: 2.25.6
• platform: docker (self-hosted)
• nodeJsVersion: 24.15.0
• nodeEnv: production
• database: sqlite
• executionMode: regular
• concurrency: -1
• license: enterprise (production)
• consumerId: 7c604437-8a71-4cd3-8502-48330b6fead0

storage

• success: all
• error: all
• progress: false
• manual: true
• binaryMode: filesystem

pruning

• enabled: true
• maxAge: 336 hours
• maxCount: 10000 executions

client

• userAgent: mozilla/5.0 (windows nt 10.0; win64; x64; rv:151.0) gecko/20100101 firefox/151.0
• isTouchDevice: false

cluster

• instanceCount: 1
• versions: 2.25.6
• instances:
  • instanceKey: cc2a98d1-ada4-43ce-808f-41bc7673210d, hostId: main-c7eed3464e3b, instanceType: main, instanceRole: leader, version: 2.25.6
• checks:
  • check: hostid-clash, status: succeeded, warnings: -
  • check: lifecycle, status: succeeded, warnings: -
  • check: split-brain, status: succeeded, warnings: -
  • check: version-mismatch, status: succeeded, warnings: -

Generated at: 2026-06-09T13:36:09.784Z

Operating System

Docker within Ubuntu

n8n Version

2.25.6

Node.js Version

24.15.0

Database

SQLite (default)

Execution mode

main (default)

Hosting

self hosted