multi-byte characters in labels take up twice as much space as in 'native' graphviz

[sverweij]

Steps taken

Render this digraph with viz.js (either version 1.8.x or 2.0.0)

digraph {
  node [shape=box]
  "Hello world" [label="Привет мир"]
}

... or this one that uses html style label formatting...:

digraph {
  rankdir=LR
  node [shape=plaintext]
  "Hello world" [label= < 
    <table border="1" cellborder="0">
      <tr><td>Привет мир</td></tr>
    </table>
  >]
}

Expected

This is the output from the 'native' graphviz dot (version 2.40.1) respectively:

Found

This is the viz.js output for both digraphs: