How to disable previous pdf loaded from blob

[falcon1029]

everytime i view the pdf viewer it always display the previously loaded pdf .

this.downloadFile(this.pdfSr1c).subscribe(
      (res) => {
    
        this.pdfViewerAutoLoad.pdfSrc = res; // pdfSrc can be Blob or Uint8Array
        this.pdfViewerAutoLoad.refresh();
        this.pdfViewerAutoLoad.refresh();
        this.pdfViewerAutoLoad.refresh(); // Ask pdf viewer to load/refresh pdf
      }
    );

 private downloadFile(url: string): any {
    return this.httpclient.get(url, {observe: 'body', responseType: 'blob' as 'json'})
      .pipe(
        map((result: any) => {
          console.log(result);
          return result;
        })
      );
  }

[beazergood]

@roxic8 how did you fix this? I currently have the same issue. I change the src of the pdf by clicking on a thumbnail in my application but the viewer is always displaying the previous pdf.