Is it posible to disable Chart for public user? (question)

[larsmars]

Is it posible to disable Chart and "Explore chart" for public user?
Without disabling the posibility to use iFrame of the chart.

I do not want the public user to have the posiblity to change/customize and play around with the chart.
ie: changing:

• Datasource
• Visualization type
• Time/range/filter
• Query
• Row limit

I still need the iFrame of the chart to be publicly available.
I still need published dashboards to be publicly available.

Expected results

Option/Role/Permission to limit public role access to chart and chart editing/"Explore Chart"

Actual results

Can not find any option for this?
If I remove "can explore on superset" the chart, chart editing and "Explore chart" is hidden for the public user, but then I can not use iFrame of charts for public user.

Screenshots

How to reproduce the bug

1. Create public role
2. Create iFrame
3. Explore chart
4. Explore iFrame
5. Play with public role permissions (see img under)

Environment

superset version: 0.36.0
python version: 3.6.10
node.js version: 12.16.1
npm version: 6.13.4

Checklist

• I have checked the superset logs for python stacktraces and included it here as text if there are any.
• I have reproduced the issue with at least the latest released version of superset.
• I have checked the issue tracker for the same issue and I haven't found one similar.

###Additional context