通过内联样式在 Angular 6 个模板中显示图像 - 安全问题

Displaying Images in Angular 6 Templates Thru Inline Styles - Security Issues

我需要通过内联样式显示图像。该图像不是本地图像,而是来自 JSON 提要的 URI。但是,尽管遵循官方文档,我还是无法通过 Angular 6 安全性。我已经检查了图像 URI,它很好。

控制台输出:

Object { changingThisBreaksApplicationSecurity: "http://uri/to/image.png" }

这里不是我尝试过的所有内容,而是我目前拥有的内容。我不是唯一遇到这个问题的人,所以我想知道其他人是怎么做到的?

component.ts:

import { Component, OnInit } from '@angular/core';
import { DomSanitizer, SafeHtml, SafeStyle, SafeScript, SafeUrl, SafeResourceUrl } from '@angular/platform-browser';
import { DataService } from '../../services/data.service';
import { Business } from '../../models/Business';

@Component({
  selector: 'app-list',
  templateUrl: './list.component.html'
})
export class ListComponent implements OnInit {
  fetchedBusinesses: Business[];
  trustedURL: any;

  constructor(private dataService: DataService, private sanitizer: DomSanitizer) { }

  ngOnInit() {
    this.fetchedBusinesses = this.dataService.getBusinesses();
    this.trustedURL = this.sanitizer.bypassSecurityTrustUrl(this.fetchedBusinesses[0].backgroundImageURL);
  }
}

模板语法:

<div class="someClass" *ngFor="let biz of fetchedBusinesses">
    <div class="someClass" [style.background]="'url(' + trustedURL + ')'"></div>
</div>

trustedURL 记录到控制台通知我 SafeValue 需要 属性 绑定。那不是我在做什么吗?这是警告:

WARNING: sanitizing unsafe style value url(SafeValue must use [property]=binding: http://path/to/image.png (see http://g.co/ng/security#xss)).

清理组件

中的 URL
this.image = this.sanitization.bypassSecurityTrustStyle(`url(${this.fetchedBusinesses[0].backgroundImageURL})`); 

并添加到模板

<div class="someClass" [style.background]="image"></div>