showframe not working for scattergeo if geo.scope is set

Expect that when showframe=True that there's a border around the map.

To Reproduce:

from dash.dash import PreventUpdate
import xarray as xr
import pandas as pd
import numpy as np
import plotly.express as px
import plotly.graph_objects as go
import requests
from datetime import datetime, timedelta
from dash import Dash, dcc, html, Input, Output, State, callback, dash_table

# Create a sample dataframe
np.random.seed(42)  # For reproducibility
data_size = 500

data_1041 = pd.DataFrame({
    'latitude': np.random.uniform(low=10.0, high=35.0, size=data_size),
    'longitude': np.random.uniform(low=-91.0, high=-55.0, size=data_size)
})

app = Dash(__name__)
server = app.server

def blank_fig():
    fig = go.Figure(go.Scatter(x=[], y=[]))
    fig.update_layout(template=None)
    fig.update_xaxes(showgrid=False, showticklabels=False, zeroline=False)
    fig.update_yaxes(showgrid=False, showticklabels=False, zeroline=False)
    
    return fig

color_sequence = ['#2E91E5', '#E15F99', '#1CA71C', '#FB0D0D', '#DA16FF', '#222A2A', '#B68100', '#750D86', '#EB663B', '#511CFB', '#00A08B', '#FB00D1', '#FC0080', '#B2828D', '#6C7C32', '#778AAE', '#862A16', '#A777F1', '#620042', '#1616A7', '#DA60CA', '#6C4516', '#0D2A63', '#AF0038']

app.layout = html.Div(
    [
        dcc.Dropdown(
            options=['1041'],
            value=['1041'],
            multi=True,
            id='dropdown-drone-choice'
        ),
        html.Div([dcc.Graph(id='saildrone-map', figure=blank_fig(), style={'width': '90vw', 'height': '90vh'})])
    ],
    style={"margin": "1em 5em", "font": "Times New Roman"}
)

@app.callback(
    Output('saildrone-map', 'figure'),
    Input('dropdown-drone-choice', 'value')
)
def update_drone(droneid_nam):
    dronedata_all = {
        '1041': data_1041,
    }

    fig = go.Figure()
    for i, drone in enumerate(droneid_nam):
        fig.add_trace(go.Scattergeo(
            lat=dronedata_all[drone]['latitude'][-180:],
            lon=dronedata_all[drone]['longitude'][-180:],
            name=drone,
            mode='markers',
            marker=dict(
                color=color_sequence[i]
            ),
            showlegend=True
        ))
        fig.add_trace(go.Scattergeo(
            lat=[dronedata_all[drone]['latitude'].iloc[-1]],
            lon=[dronedata_all[drone]['longitude'].iloc[-1]],
            name=drone,
            mode='markers',
            marker=dict(
                symbol='x',
                size=8,
                color=color_sequence[i],
                line=dict(
                    color='black',
                    width=1
                )
            ),
            showlegend=False
        ))

    fig.update_layout(
        geo=dict(
            scope='north america',
            showframe=True,
            showland=True,
            landcolor='rgb(204, 204, 204)',
            projection_type='mercator',
            lonaxis=dict(
                showgrid=True,
                gridwidth=0.5,
                gridcolor='gray',
                range=[-91.0, -55.0],
                dtick=5
            ),
            lataxis=dict(
                showgrid=True,
                gridwidth=0.5,
                gridcolor='gray',
                range=[10.0, 35.0],
                dtick=5
            )
        ),
        legend=dict(
            title='droneID',
            bordercolor='black',
            borderwidth=1
        ),
        font=dict(
            family='Times New Roman',
            size=16
        ),
        margin=dict(
            l=20, r=20, t=20, b=20
        )
    )

    dtick = 5
    x = list(range(-90, -55 + dtick, dtick))
    y = list(range(10, 40 + dtick, dtick))
    xpos = -90
    ypos = 10
    fig.add_trace(go.Scattergeo(
        lon=x[1:-1] + [xpos] * (len(y) - 2),
        lat=[ypos] * (len(x) - 2) + y[1:-1],
        showlegend=False,
        text=x[1:-1] + y[1:-1],
        mode='text',
        hoverinfo='skip'
    ))

    return fig

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

Produces:

Workaround:
Get rid of scope='north america', and the frame will appear with and without showframe defined

まず、提供されている Scattergeo の再現コードを実行し、geo.scope を "north america" に設定した場合と設定しない場合で、描画された地図を比較します。次に、plotly.js の geo フレームのレンダリングパスを追跡し、scope が設定されているときに showframe=True が期待される境界線を生成すること、および既存の workaround が不要になっていることを確認します。