GitHub user Ramicorrea-Chimi created a discussion: ChunkLoadError when
generating dashboard screenshot using
/api/v1/dashboard/{pk}/cache_dashboard_screenshot/
Hi folks,
I'm trying to generate a PDF dashboard export using the REST API from an
embedded dashboard. This works just fine locally, but in the deployed version,
the generated PDF output looks like this:
<img width="1600" height="1200" alt="image"
src="https://github.com/user-attachments/assets/5026b2f0-dec5-4324-bd8d-269763cf0b71";
/>
I'm pretty sure the paths are well specified in my config.
Logs on superset-worker show that it's caching the screenshot at the desired
URL, and accessing that same URL from a browser shows the dashboard just as I
want it. However, the cached screenshot has this ChunkLoadError.
I'm using Playwright and chromium.
```
FROM apache/superset:6.0.0-dev
USER root
RUN . /app/.venv/bin/activate && \
uv pip install playwright && \
playwright install-deps && \
PLAYWRIGHT_BROWSERS_PATH=/usr/local/share/playwright-browsers playwright
install chromium
COPY ./docker /app/docker
USER superset
```
```FEATURE_FLAGS = {
"ALERT_REPORTS": True,
"EMBEDDED_SUPERSET": True,
"ENABLE_CORS": True,
"ENABLE_PROXY_FIX": True,
"ENABLE_TEMPLATE_PROCESSING": True,
"AVOID_COLORS_COLLISION": False,
"THUMBNAILS": True,
"ENABLE_DASHBOARD_SCREENSHOT_ENDPOINTS": True,
"PLAYWRIGHT_REPORTS_AND_THUMBNAILS": True
}
WEBDRIVER_BASEURL = os.getenv("WEBDRIVER_BASEURL")```
The WEBDRIVER_BASEURL points to my deployed superset app.
GitHub link: https://github.com/apache/superset/discussions/37062
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