Angular bypassSecurityTrustResourceUrl 说任何参数都是未定义的

Question

我正在尝试使用 bypassSecurityTrustResourceUrl 清理 URL .但是，无论我在参数中放入什么值，我总是得到

Cannot read property bypassSecurityTrustResourceUrl of undefined

return this.sanitizer.bypassSecurityTrustResourceUrl('http://www.google.com');

返回:

ERROR TypeError: Cannot read property bypassSecurityTrustResourceUrl of undefined at UrlSanitizerService.push../src/app/services/urlsanitizer.service.ts.UrlSanitizerService.sanitizeURL

我看过的每个地方都说这应该清理一个 url 并允许它通过 iframe 显示。我可能误解了争论的内容。任何帮助将不胜感激，谢谢!

Answer 1

此错误与您作为参数传递的内容无关，而与 sanitizer 有关。

您需要确保在构造函数中导入和声明 sanitizer ，如下所示:

import { DomSanitizer} from '@angular/platform-browser';

...

constructor(private sanitizer:DomSanitizer) {    }