Angular 7 中的 SVG 清理

Question

我正在尝试对SVG物体进行消毒，但没有运气。

我有以下 HTML 模板：

画布.组件.html

<object #worldMap class="worldMap" [attr.data]="'assets/canvas/world.svg' | safe: 'resourceUrl'" type="image/svg+xml" id="worldMap">Your browser doesn't support SVG</object>

并在safe.pipe.ts中

import { Pipe, PipeTransform } from '@angular/core';
import { DomSanitizer, SafeHtml, SafeStyle, SafeScript, SafeUrl, SafeResourceUrl } from '@angular/platform-browser';

@Pipe({
  name: 'safe'
})
export class SafePipe implements PipeTransform {    
  constructor(protected sanitizer: DomSanitizer) { }

  public transform(value: any, type: string): SafeHtml | SafeStyle | SafeScript | SafeUrl | SafeResourceUrl {
    switch (type) {
      case 'html': return this.sanitizer.bypassSecurityTrustHtml(value);
      case 'style': return this.sanitizer.bypassSecurityTrustStyle(value);
      case 'script': return this.sanitizer.bypassSecurityTrustScript(value);
      case 'url': return this.sanitizer.bypassSecurityTrustUrl(value);
      case 'resourceUrl': return this.sanitizer.bypassSecurityTrustResourceUrl(value);
      default: throw new Error(`Invalid safe type specified: ${type}`);
    }
  }    
}

但是，它不起作用，因为它仅显示对象标签内的消息。

显示SVG资产文件夹中的替代方法是什么？