Export to PDF is creating a blank page

[jjasoncool]

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Describe the bug
draw.io docker container selfhost can't export PDF files, png and svg is normal.

To Reproduce
Steps to reproduce the behavior:
Just simple export PDF

Will pop page 404, and url is https://mydomain/service/0

Expected behavior
A clear and concise description of what you expected to happen.

• download exported PDF file.

draw.io version (In the Help->About menu of the draw.io editor):

• draw.io version 22.1.4

Desktop (please complete the following information):

• OS: windows/Linux
• Browser firefox
• Browser Version 120.0

I tested the problem in incognito/private mode with all browser extensions switched off, write "yes" below:

• yes

Additional context
My Drawio is selfhost using docker-compose

  drawio:
    image: jgraph/drawio:${DWIO_VERSION}
    container_name: drawio
    restart: always
    environment:
      - DRAWIO_SELF_CONTAINED=1
      - DRAWIO_BASE_URL=https://${HOST_DOMAIN}
      - DRAWIO_SERVER_URL=https://${HOST_DOMAIN}/drawio/
      # why doesn't use EXPORT_URL to export PDF?
      - EXPORT_URL=http://image-export:8000/
    depends_on:
      - nginx

  image-export:
    image: jgraph/export-server:latest
    container_name: drawio-export
    expose:
      - "8000"
    environment:
      - DRAWIO_BASE_URL=https://${HOST_DOMAIN}
    volumes:
      - ./drawio/fonts:/usr/share/fonts/drawio
    restart: always

REF: https://github.com/jgraph/docker-drawio/blob/dev/nextcloud/docker-compose.yml

The EXPORT_URL use docker local domain like upon example, but drawio don't send request to export-server

[jjasoncool]

#128

[m-mohamedin]

The two containers need to be in the same docker network. Did you try the original docker compose file?