how to download Audit log pdf using ADF component?

[dharmraj]

i am using  this directive to download  audit logs. but its downloading Blank Pdf . Process is completed

<button adf-process-audit 

          [process-id]="processInstanceId"

          [format]="'pdf'"

          [download]="true" 

          mat-icon-button

          [matTooltip]="'Download Process Audit'"

          style="float: right">

    <mat-icon>assignment_ind</mat-icon>

  </button>