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Nextcloud attachements fail loading #152

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opened 2026-04-08 16:41:51 +02:00 by ahtlon · 4 comments
ahtlon commented 2026-04-08 16:41:51 +02:00
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ahtlon added the Bug/Problem nextcloud labels 2026-04-08 16:41:51 +02:00
ahtlon commented 2026-04-08 16:43:21 +02:00
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grafik.png Looking at the network tab, this seems a problem not with nextcloud but the proxy maybe. The requests for the previews get blocked by CSP

Content-Security-Policy: Die Einstellungen der Seite haben das Laden einer Ressource (img-src) auf http://cloud.malobeo.org/apps/text/mediaPreview?documentId=920&mediaFileName=bizhub-c258-datasheet.pdf blockiert, da sie gegen folgende Direktive verstößt: "img-src 'self' data: blob: https://*.tile.openstreetmap.org"

<img width="1510" alt="grafik.png" src="attachments/313deaa7-bf4c-4ba3-ae11-3b7e1b9a37f6"> Looking at the network tab, this seems a problem not with nextcloud but the proxy maybe. The requests for the previews get blocked by CSP `Content-Security-Policy: Die Einstellungen der Seite haben das Laden einer Ressource (img-src) auf http://cloud.malobeo.org/apps/text/mediaPreview?documentId=920&mediaFileName=bizhub-c258-datasheet.pdf blockiert, da sie gegen folgende Direktive verstößt: "img-src 'self' data: blob: https://*.tile.openstreetmap.org"`
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kalipso commented 2026-04-14 12:44:06 +02:00
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I dont think this is due to proxy settings since the error states that only image data from 'openstreetmap.org' is expected. This certainly is not configured by us but must be some problem within nextcloud source code, or within the nixos module we use for nextcloud.

Or there is a misconfiguration in our instances that makes the nextcloud belive pdf/images would be map data.

I dont think this is due to proxy settings since the error states that only image data from 'openstreetmap.org' is expected. This certainly is not configured by us but must be some problem within nextcloud source code, or within the nixos module we use for nextcloud. Or there is a misconfiguration in our instances that makes the nextcloud belive pdf/images would be map data.
kalipso commented 2026-04-14 12:53:21 +02:00
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Ah also it requests from http not https which could be the problem.

Ah also it requests from http not https which could be the problem.
kalipso self-assigned this 2026-04-14 12:53:38 +02:00
kalipso commented 2026-04-14 13:50:16 +02:00
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Jep, http was the problem. Fixed in c40d84ba4d

Jep, http was the problem. Fixed in https://git.dynamicdiscord.de/malobeo/infrastructure/commit/c40d84ba4d9ebc716e0ecf83244c5d5f290e1586
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Reference: malobeo/infrastructure#152
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