JavaScript isn't executed

[kornerc]

I tried this example which should show an alert-dialog with the text test.
However, no dialog is displayed, neither with Firefox 65 nor with Chrome 72
Here is the code for this example

import dash_dangerously_set_inner_html
import dash
import dash_html_components as html

app = dash.Dash('')

app.scripts.config.serve_locally = True

app.layout = html.Div([
    dash_dangerously_set_inner_html.DangerouslySetInnerHTML('''
        <script type="text/javascript">alert('test')</script>
    '''),
])

if __name__ == '__main__':
    app.run_server(debug=True)

If an Iframe is used instead of dash_dangerously_set_inner_html, the dialog will appear.

import dash_dangerously_set_inner_html
import dash
import dash_html_components as html

app = dash.Dash('')

app.scripts.config.serve_locally = True

app.layout = html.Div([
    html.Iframe(srcDoc='''
        <script type="text/javascript">alert('test')</script>
    '''),
])

if __name__ == '__main__':
    app.run_server(debug=True)

Is it itentional that JavaScript isn't executed in dash_dangerously_set_inner_html or is it a bug?

Here are my package versions:

• Python: Python 3.6.8
• dash-dangerously-set-inner-html: 0.0.2
• dash-core-components: 0.43.0
• dash-html-components: 0.13.5
• dash-renderer: 0.17.0
• dash-table: 3.3.0
• flask: 1.0.2