geekdinazor commented on issue #28713:
URL: https://github.com/apache/superset/issues/28713#issuecomment-3112925377
Problem remains in version 5.0.0. We tried to add
```py
FEATURE_FLAGS = {
DASHBOARD_VIRTUALIZATION: False
}
```
in superset_config.py but it gives error:
```
[2025-07-24 10:23:24 +0000] [54] [ERROR] Exception in worker process
Traceback (most recent call last):
File "/app/.venv/lib/python3.10/site-packages/gunicorn/arbiter.py", line
608, in spawn_worker
worker.init_process()
File
"/app/.venv/lib/python3.10/site-packages/gunicorn/workers/gthread.py", line 94,
in init_process
super().init_process()
File "/app/.venv/lib/python3.10/site-packages/gunicorn/workers/base.py",
line 135, in init_process
self.load_wsgi()
File "/app/.venv/lib/python3.10/site-packages/gunicorn/workers/base.py",
line 147, in load_wsgi
self.wsgi = self.app.wsgi()
File "/app/.venv/lib/python3.10/site-packages/gunicorn/app/base.py", line
66, in wsgi
self.callable = self.load()
File "/app/.venv/lib/python3.10/site-packages/gunicorn/app/wsgiapp.py",
line 57, in load
return self.load_wsgiapp()
File "/app/.venv/lib/python3.10/site-packages/gunicorn/app/wsgiapp.py",
line 47, in load_wsgiapp
return util.import_app(self.app_uri)
File "/app/.venv/lib/python3.10/site-packages/gunicorn/util.py", line 423,
in import_app
app = app(*args, **kwargs)
File "/app/superset/app.py", line 37, in create_app
app.config.from_object(config_module)
File "/app/.venv/lib/python3.10/site-packages/flask/config.py", line 231,
in from_object
obj = import_string(obj)
File "/app/.venv/lib/python3.10/site-packages/werkzeug/utils.py", line
596, in import_string
__import__(import_name)
File "/app/superset/config.py", line 1955, in <module>
import superset_config
File "/app/pythonpath/superset_config.py", line 57, in <module>
DASHBOARD_VIRTUALIZATION: False
NameError: name 'DASHBOARD_VIRTUALIZATION' is not defined
```
We use official Apache Superset 5.0.0 Docker image from [Docker
Hub](https://hub.docker.com/layers/apache/superset/v5.0.0/images/sha256-2f62fe152008e19669e2402a71e174f44808cbf2ebb7665e634f21feed1e442d).
Chart image look incorrectly cropped when downloaded in Firefox. We tested
it on Firefox 140.0.4 (64 bit; Windows/Linux). This problem not occurs on
Chrome 138.0.7204.157 (Linux) and Chrome 138.0.7204.159 (Windows).
Selected chart:
<img width="1084" height="526" alt="Image"
src="https://github.com/user-attachments/assets/9b0bbb7e-283f-461c-9790-7aff23ed10a5"
/>
Output in Firefox (Which is broken):

Output in Chrome (Which is good):

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