Loading documents always show "The file content does not match the file extension"

Docs
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1

Hello,

I’ve set up an OnlyOffice server as a shared service in an environment where multiple frontend (FE) and backend (BE) installations are running on a Docker host. Inside my web-application the OnlyOffice frontend loads successfully, but I encounter the following error when trying to open a file:
“An error has occurred while opening the file. The file content does not match the file extension.”
The file itself can be downloaded in the browser directly using our file download service (auth_request in location of file server is temporarly deactivated for testing).
Additionally, running docker logs -f for the OnlyOffice container doesn’t show any logs while attempting to open the file as well as the log files themselfes do not have got any entries.

Here is how the OnlyOffice component is being called from the frontend:

<DocumentEditor
  id="onlyoffice-editor"
  documentServerUrl={`${process.env.REACT_APP_URL}api/office`}
  config={{
    document: {
      fileType: 'docx', // temporarly hard-coded for testing purpose
      key: `file-${new Date().getTime()}`,
      title: 'Test',
      url: fileUrl, // pointing to our file download service
    },
    documentType: 'word', // temporarly hard-coded for testing purpose
    editorConfig: {
      mode: 'view',
      ...
    },
  }}
  ...
/>

Here is the docker-compose.yml configuration for the up and running container:

services:
  onlyoffice:
    image: onlyoffice/documentserver:latest
    container_name: development_office
    restart: always
    ports:
      - "3019:80"
    stdin_open: true
    environment:
      - JWT_ENABLED=false
      - JWT_SECRET=test
      - JWT_HEADER=Authorization
      - ENABLE_TLS=false
    volumes:
      - ./office/logs/:/var/log/onlyoffice
      - ./office/data/:/var/www/onlyoffice/Data
    networks:
      - "application/network:development"

networks:
  "application/network:development":
    external: true

Additionally, here is the relevant NGINX location configuration for OnlyOffice on the Docker host:

location /api/office/ {
    # auth_request /backend/public/services/authenticate;
    # error_page 401 = /error401;
    proxy_pass http://localhost:3019/;  # Backend for ONLYOFFICE
    proxy_http_version 1.1;

    # WebSocket Headers
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";

    # Forwarding Headers
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-Host $host;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

    # Buffering Settings for WebSocket
    proxy_cache_bypass $http_upgrade;
    proxy_set_header X-Accel-Buffering 'no';
    proxy_buffering off;
    chunked_transfer_encoding off;

    # Rewrite for Compatibility
    rewrite ^/api/office/(.*) /$1 break;
  }

Has anyone encountered this issue before or can offer guidance on how to resolve it? I’ve already checked relevant posts and the guides for setting things up containered. Any insights or suggestions would be greatly appreciated!

Thanks in advance.
Marc

2

Hello @graph-designer,
Please provide the original file with which the issue is reproduced

3

Hello Dmitrii,

it can be reproduced with various files. Here’s the last one I’ve tried: test (13.1 KB)

Kind regards,
Marc

4

Please provide Document Server logs as file (/var/log/onlyoffice/documentserver - inside the container) together with the full Editor’s initialization config (as file)

5

I really would like to have some logs. But all of them are 0 byte long for todays test. Also looking at the direct output of the container via docker logs -f doesn’t show anything.

root@736d5e73d217:/var/log/onlyoffice/documentserver# ls -l
total 24
drwxr-xr-x 2 ds       ds 4096 Jan 17 06:37 converter
drwxr-xr-x 2 ds       ds 4096 Jan 17 06:37 docservice
drwxr-xr-x 2 ds       ds 4096 Jan  9 10:18 metrics
-rwxr-xr-x 1 www-data ds    0 Jan 17 06:37 nginx.error.log
...
root@736d5e73d217:/var/log/onlyoffice/documentserver# ls -l converter/
total 44
-rwxr-xr-x 1 ds ds     0 Jan  9 10:18 err.log
-rwxr-xr-x 1 ds ds     0 Jan 17 06:37 out.log
...
root@736d5e73d217:/var/log/onlyoffice/documentserver# ls -l docservice/
total 36
-rwxr-xr-x 1 ds ds    0 Jan  9 10:18 err.log
-rwxr-xr-x 1 ds ds    0 Jan 17 06:37 out.log
...
root@736d5e73d217:/var/log/onlyoffice/documentserver# ls -l metrics/
total 0

And the editor is initialized via the docker-compose config I’ve already sent. There’s nothing additionally configured. Please give me a hint if you need a specific conf file.