Power BI透明背景不起作用

Question

import * as pbi from 'powerbi-client';
import * as models from 'powerbi-models';

const embedConfiguration = {
      type: 'dashboard',
      id:  // removed
      embedUrl: 'https://app.powerbi.com/dashboardEmbed',
      tokenType: pbi.models.TokenType.Embed,
      settings: {
        background: models.BackgroundType.Transparent
      },
      accessToken: // removed
    };
    const container = document.getElementById('report-container');

    window.powerbi.embed(container, embedConfiguration);

我已将容器的背景设置为粉红色，并且会短暂显示，但是在iframe中加载的报告会立即带有边框，并且报告者的背景为难看的灰色。