How do I open a directory in a new tab from angular 8 using the directory's absolute path?

I want to view some directory in a new tab from angular 8 using the absolute directory path.

Right now I'm trying the following

html

<a (click)="goToLink()">click to see directory</a>

ts

goToLink()  {
    window.open("/directory/path");
  }

but this open a new tab with the url "http://localhost:4200/directory/path"

which just takes me to "http://localhost:4200" my app homepage