Sanitize url in angular example

Project: codever - File: backup-bookmarks-dialog.component.ts

Use the DomSanitizer and its method bypassSecurityTrustUrl as shown in the example below. Thus, you don’t get the unsafe prefix in your generated html

export class BackupBookmarksDialogComponent implements OnInit {

  backupType: string; // 'bookmarks' | 'snippets';
  blobUrl: any;
  sanitizedBlobUrl: any;
  filename: string;

    private dialogRef: MatDialogRef<BackupBookmarksDialogComponent>,
    private router: Router,
    @Inject(MAT_DIALOG_DATA) data,
    private sanitizer: DomSanitizer
  ) {
    this.sanitizedBlobUrl = this.sanitizer.bypassSecurityTrustUrl(data.blobUrl);
    this.blobUrl = data.blobUrl;
    this.backupType = data.backupType;
    const currentDate = new Date();
    this.filename = `${this.backupType}_${currentDate.toISOString()}.json`;

In the html component the sanitizedBlogUrl is injected in the href attribute of the a html element

  <a [href]="sanitizedBlobUrl" [download]="filename" type="button" class="btn btn-primary btn-sm mr-2" (click)="download()"><i class="fas fa-download"></i> Download

Reference -

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Adrian Matei

Adrian Matei
Life force expressing itself as a coding capable human being

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