Need to open CSS URL every time before running the app

Hi All,

I am using the external CSS from Dash User Guide. But every day(or different browsers, or laptops) I have to open the CSS URL in the browser before I run my app. Otherwise, the format would be messed up. After I open the CSS URL, the format is correct. Is there anybody know how to fix that?

here is the external CSS code:

external_stylesheets = ['']
app = dash.Dash(__name__, external_stylesheets=external_stylesheets)
server = app.server

Thank you.

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