Binary data not receiving proper metadata

Hi all,

I’ve got a flow running successfully since a few years, but since December, this step doesn’t work anymore: I’m downloading files, and then check on the file extension. This used to work properly, but since December, it seems that reading out this file isn’t possible anymore: the file is downloaded, but both the extension as the filename are not added to the file as it used to do.

As you can see, the filenames & content types are correctly gathered per file:

But the filenames & extensions are not added:

In another step in the flow, I used to Decompress the zip files. This also doesn’t work anymore:

No clue what has been changed as this flow used to work perfectly before December :face_with_raised_eyebrow:

Thanks in advance!!

(I’m using v1.25.1 via Docker installation on Ubuntu)

It looks like your topic is missing some important information. Could you provide the following if applicable.

  • n8n version:
  • Database (default: SQLite):
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app):
  • Operating system:

It seems something related to files from a specific domain.

This is a test flow to isolate the issue I have.

Any file of this domain ( is providing me this issue. If I replace the URL of the file with another URL (eg, it works as it should.

Does anyone know why this happens to this domain?


1 Like

Hi @Cadish, thanks so much for reporting this (and especially for providing the example workflow!) and sorry for the trouble.

It appears the server at is not sending the content-disposition header from your original screenshot which is used by n8n to identify the file name:

Of course, n8n should still be able to use the filename based on the URL, which doesn’t seem to be happening here, so I think you’ve unfortunately encountered a bug :frowning:

I’ll add this to our engineering backlog for further investigation and fix, and we’ll update this thread as soon as a fix is available.

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Great! Thanks a lot for your reply.

Looking forward to a fix.

1 Like

New version [email protected] got released which includes the GitHub PR 8583.


Great! Thanks a lot @jan!