Opera and Nextcloud (upload Files are allways 0 byte)

šŸŒ International support
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1

Hi everyone,

After updating to the latest version, Iā€™ve noticed the following:
No matter what kind of document I upload, it always shows as ā€œ0 bytesā€ in size. Is there a solution for this?
Iā€™m using the Opera browser, which worked fine before.
However, Iā€™ve noticed that it works in Chrome, so my question is: how can I fix this so it works in Opera again?

It doesnā€™t seem to be a general Nextcloud problem.
But it would still be great if someone could explain why it works in one browser and not another. Iā€™m not getting any error messages.

My OS is:
CachyOS latest build with kernel 7.x
I installed Opera via ā€œFlatpakā€.

Thanks for the support.
Apart from this problem, I havenā€™t noticed anything else wrong with the browser.

Nextcloud Hub 26 Spring (34.0.0):

  • Operating system and version (Truenas Linux version : 6.12.33-production+truenas #1 SMP PREEMPT_DYNAMIC Mon Feb 23 17:38:27 UTC 2026 x86_64 GNU/Linux*)*

  • postgres version 18.3-trixie

  • nginx version 1.29.6:

  • Reverse proxy npmplus (version 2.14.0): GitHub - ZoeyVid/NPMplus: a fork of nginx-proxy-manager Ā· GitHub

  • PHP version (8.4.18):

  • Is this the first time youā€™ve seen this error? (Yes )

  • Installation method (APP Container on Truenas Scale version 24.10.2.1 Goldeye ā€“ Maintainer Installation Template*)*

  • Are you using Cloudflare, mod_security, or similar? (No) - its on my own network

2

Do you mean in your folder listing of files or within the upload transaction itself? Maybe post a screenshot.

Iā€™m not getting any error messages.

In your browser console? See support template to details for retrieving.

3

Hello,

I thought it was clear what I meant.
Iā€™ll upload a ā€œFileā€ so you can see.

image
image3244Ɨ515 133 KB

All Files from Opera has 0 Bytes from Chrome work.
But the question is why it works in Chrome and not in Opera; I havenā€™t changed any settings.

Best regards

4

just a random thought: Is Opera VPN disabled?

5

correct , VPN is not activated.

Otherwise, I have no problems except for the internal Nextcloud instance, but the problem only affects the Opera browser; it seems to work with Chrome. Maybe I should wait until the next update; itā€™s well known that new updates always bring new bugs.

Iā€™ve already gone through a few Nextcloud updates and always had new problems on the instance after an update. Sometimes the notes suddenly stop working, other times itā€™s the browser issue. Well, itā€™s never boring, that much is certain.

6

So, with version 34.0.1 the problem was fixed, but it also introduced new problems, including some that I experienced after the update. I think Iā€™ll mark it in my calendar for when a Nextcloud update comes out that doesnā€™t have these issues for me. But I think thatā€™ll be a long wait.