Collabora throwing 413 Request Entity Too Large error

rcdncn

I have a Nextcloud instance running on a non-Cloudron server, but use Collabora within Cloudron to open documents and convert. Currently, I will get the following error in my Nextcloud logs:

[richdocuments] Error: Failed to convert preview: Client error: `POST https://[servername]/cool/convert-to/png` resulted in a `413 Request Entity Too Large` response:
<html>
<head><title>413 Request Entity Too Large</title></head>
<body>
<center><h1>413 Request Entity Too Large</h1>< (truncated...)

	GET /core/preview?fileId=11028&x=32&y=32&mimeFallback=true&v=687e6d&a=0
	from 70.54.87.2 by kv_pdacadmin at Sep 12, 2025, 12:46:02 PM

Some research suggests the it might be the nginx at the cloudron side that may be the issue, and that client_max_body_size may need to be increased. What's odd is that I can open large files for editing, so I think that Nextcloud is sending other requests to Collabora (thumbnails, pdf conversion?) that are failing.
I can't see any error logs in nginx on Cloudron, but I can see the access.

Am I on the right path? Is there a documented way to alter the nginx infor for a single app that is persistent between updates?

james

Hello @rcdncn

Is POST https://[servername]/cool/convert-to/png your Nextcloud or the collabora?
This is important because if you Nextcloud responds with 413 Request Entity Too Large then the issue is with your Nextcloud provider.

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Collabora throwing 413 Request Entity Too Large error