Continuation of pygae/clifford#170

The plots are no longer repeated, but they still appear in the wrong places: https://clifford.readthedocs.io/en/latest/Example%201%20Interpolating%20Conformal%20Objects.html

This is due to something like:

<script>
call_soon(()=>document.write("a"));
</script>
b
<script>
call_soon(()=>document.write("c"));
</script>

which can output bac or even bca depending on how call_soon behaves (in this case, requirejs)