Encode URL links In Report grid

[Tonie]

I am trying to  pass fields with special characters such as a Hash(#) over query string?

I am new to Javascript, but I copied the Javascript from the answer below, and it works fine on the first link of the grid, but all the rest of the links have the parent URL and none of the data. It is building the parameters properly for the first link. 

I inspected the  broken link and I found:

Do I need a loop? or do I need to refer to the links I am trying to encode a different way than    document.querySelector(`#${link_id}`).href = `${base_url}?${params.join("&")}` 

Is there a better way to build the links? I have 17 fields that I am adding to the array to build the links. 

I would appreciate any help