irule does not work in browsers other than google

Hello forum team, 
I wrote and implemented an irule for redirection. It doesn't work in Chrome without adding “/” at the end of the path.  In Firefox and Ms edge it doesn't work at all. 
My irule is as follows:

when HTTP_REQUEST {
 if { [HTTP::path] equals “/” } {
    HTTP::redirect “/wm/”
  }
}

Has anyone had experience with this?