Elements not visible with 'defs' / 'use'

[pedro-w]

Elements which are defined in a defs section and then subsequently referenced by a use element are not shown. See example file. I would expect the box to be visible (as it is when loaded with Edge or with Atom's SVG preview).
Using VSCode 1.7.2, SVG viewer 1.2.0.

<?xml version="1.0" encoding="UTF-8"?>
<svg xmlns="http://www.w3.org/2000/svg" 
    width="128" height="128" 
    xmlns:xlink="http://www.w3.org/1999/xlink">
<defs>
<g id="box">
<rect height="20" width="20" 
    stroke="black" fill="white"/>
</g>
</defs>
<use xlink:href="#box" x="50" y="50"/>
</svg>

[cssho]

Thanx @pedro-w
Fixed this issue with v1.3.0

[cimbul]

I'm still seeing this with v1.3.0, on VSCode 1.7.2 and macOS 10.11.6, using the exact SVG given by the OP. The same problem exists with <symbol> + <use>.

[fvsch]

Works for me with 1.4.2 on VSCode 1.13.1 on macOS.

Example from OP: displays alright.
Another example that works:

<svg xmlns="http://www.w3.org/2000/svg"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  viewBox="0 0 100 100">
  <rect id="foo" x="0" y="0" width="50" height="50" fill="red"></rect>
  <use xlink:href="#foo" x="50" y="50"></use>
</svg>