Height of plot is 0 until resize after changing layout input

Hello,

I'm having a bit of trouble with my charts in a dashboard. I've implemented theme switching in my application using system variables and Angular Material. I'm able to change my chart's look and feel according to the colors of my theme. However, the container will collapse when I switch to a new theme because the plotly-plot element has a height of 0 until I resize the window.

Injectable

import { DOCUMENT } from '@angular/common';
import {
  computed,
  effect,
  inject,
  InjectionToken,
  signal,
} from '@angular/core';
import { WA_WINDOW } from '@ng-web-apis/common';

export const THEME = new InjectionToken('Theme', {
  factory: () => {
    const w = inject(WA_WINDOW);
    const d = inject(DOCUMENT);
    const darkMode = signal(true);
    const setDarkMode = effect(() =>
      d.documentElement.classList.toggle('light', !darkMode())
    );
    return {
      darkMode,
      textColor: computed(() => {
        darkMode();
        return getComputedStyle(d.documentElement).getPropertyValue(
          '--mat-app-text-color'
        );
      }),
    };
  },
});

Component

...
  readonly #theme = inject(THEME);

  readonly ageGenderChartLayout = computed<Partial<Plotly.Layout>>(() => ({
    barmode: 'stack',
    autosize: true,
    margin: {
      l: 60,
      r: 50,
      b: 100,
      t: 50,
      pad: 4,
    },
    title: 'People by Age',
    paper_bgcolor: 'rgba(255,255,255,0)',
    plot_bgcolor: 'rgba(255,255,255,0)',
    font: {
      color: this.#theme.textColor(),
    },
  }));
...

Template

<mat-card>
  <mat-card-content>
    @if (mapData$ | async; as mapData) {
    <plotly-plot [data]="mapData"
                 [layout]="mapLayout()"
                 [config]="{responsive: true, mapboxAccessToken: mapboxToken, displaylogo: false, modeBarButtonsToRemove: ['toImage']}" />
    } @else {
    <mat-spinner style="margin: auto;"></mat-spinner>
    }
  </mat-card-content>
</mat-card>

Before switching themes:

After switching themes (which updates the layout input of the plotly-plot component):

How can I have responsive charts while still have their containers "see" their actual height? is this a Plotly chart issue?

Bắt đầu với component  trong Angular template và layout input được cập nhật bởi theme signal. Tái hiện việc chuyển theme, sau đó so sánh chiều cao của chart container trước và sau khi cập nhật mà không thay đổi kích thước cửa sổ. Hoàn tất khi các responsive chart giữ nguyên chiều cao container thực tế ngay sau khi layout thay đổi.