Whiteboard file does not render when I did not save it in the whiteboard app myself

[tpokorra]

This works:

• I create a whiteboard file, add some content, close it, I can open it again, and see my content.

This does not work:

• I create a whiteboard file, add some content, close it, copy it to a different filename. I open it, and I see a blank whiteboard.
• Same for the templates: I create a new whiteboard, select a template. But I see a blank whiteboard.

even when I cannot see the whiteboard:
When I save the whiteboard from the whiteboard app, the file is downloaded, and comparing with a text editor, the content is there.

Example code that does not render after renaming the file:

{"type":"excalidraw","elements":[{"type":"rectangle","version":12,"versionNonce":1975657819,"isDeleted":false,"id":"Ep81w3Wf5gS5GZIZIWxzz","fillStyle":"solid","strokeWidth":1,"strokeStyle":"solid","roughness":0,"opacity":100,"angle":0,"x":121,"y":22,"strokeColor":"#1e1e1e","backgroundColor":"transparent","width":333,"height":98,"seed":1416249979,"groupIds":[],"frameId":null,"roundness":{"type":3},"boundElements":[],"updated":1741207166583,"link":null,"locked":false},{"type":"text","version":6,"versionNonce":450465301,"isDeleted":false,"id":"o5y2qKvpPulYpWLcK9X5H","fillStyle":"solid","strokeWidth":1,"strokeStyle":"solid","roughness":0,"opacity":100,"angle":0,"x":191,"y":49,"strokeColor":"#1e1e1e","backgroundColor":"transparent","width":58.58333206176758,"height":24,"seed":44745211,"groupIds":[],"frameId":null,"roundness":null,"boundElements":[],"updated":1741207170512,"link":null,"locked":false,"fontSize":20,"fontFamily":3,"text":"test2","textAlign":"left","verticalAlign":"top","containerId":null,"originalText":"test2","lineHeight":1.2,"baseline":20}],"files":[],"savedAt":1741207184254}

This is with Nextcloud 30.0.6 and Nextcloud Whiteboard 1.0.5.

I cannot see errors in the output of the node service, or on the browser console.

Is this a common issue, or is something wrong with my setup?

[grnd-alt]

Thanks for your report, I was not able to reproduce the issue. It sounds like your whiteboard server can't reach the nextcloud server correctly, though that should be visible in the logs. Could you please verify, that your you can reach your nextcloud instance from inside the whiteboard server?

[tpokorra]

Thank you so much @grnd-alt . Your hint helped me to solve it!

yes, indeed, there is an error message.
I ignored it, because it comes up for both situations.

[474] Fetching server data: {}
Error: HTTP error! status: 401: {"message":"Unauthorized"}
    at ApiService.fetchData (file:///home/pacs/tim05/users/ncwhiteboard/ncwhiteboard/websocket_server/ApiService.js:39:11)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async RoomDataManager.fetchRoomData (file:///home/pacs/tim05/users/ncwhiteboard/ncwhiteboard/websocket_server/RoomDataManager.js:216:19)
    at async RoomDataManager.determineDataToUpdate (file:///home/pacs/tim05/users/ncwhiteboard/ncwhiteboard/websocket_server/RoomDataManager.js:107:11)
    at async RoomDataManager.syncRoomData (file:///home/pacs/tim05/users/ncwhiteboard/ncwhiteboard/websocket_server/RoomDataManager.js:64:24)
    at async SocketManager.joinRoomHandler (file:///home/pacs/tim05/users/ncwhiteboard/ncwhiteboard/websocket_server/SocketManager.js:238:16)
    at async SocketManager.safeSocketHandler (file:///home/pacs/tim05/users/ncwhiteboard/ncwhiteboard/websocket_server/SocketManager.js:488:11)
[474] Server data is invalid, recovering from backup: {}
[474] Recovered from backup: {}

But it makes sense: the file was loaded from backup, and that is why I saw the content of a file that I had edited previously.

I have now fixed the HTTP_AUTHORIZATION in my .htaccess file, because that is causing trouble with PHP hosted with FPM:

RewriteEngine On
RewriteCond %{HTTP:Authorization} ^(.*)
RewriteRule .* - [e=HTTP_AUTHORIZATION:%1]