x3dom output breaks jupyter notebook when displaying mesh twice

[Martin Sandve Alnæs]

Try just cells:

from dolfin import *
mesh = UnitSquareMesh(1, 1)
mesh

and

mesh

to reproduce.

[Prof Garth Wells]

Which browser? We've seen this before, and at the time it wasn't clear if it was a Jupyter or a browser bug.

[Martin Sandve Alnæs]

Chromium on linux. @minrk had some idea about what dolfin might be doing wrong in the x3dom output.

[Martin Sandve Alnæs]

Works on firefox.

[Prof Garth Wells]

I would have guessed chrome. There is an issue report somewhere for Jupyter on this. I discussed this with @minrk some time ago.

Update: here's the report: https://github.com/jupyter/notebook/issues/429

[Martin Sandve Alnæs]

Reported to chromium bugtracker: https://bugs.chromium.org/p/chromium/issues/detail?id=663288

[Martin Sandve Alnæs]

Awaiting fix in chromium. For now, use firefox.

[Martin Sandve Alnæs]

@plscott can you consider if this is actually a bug in the dolfin javascript? See comment 5 here:

https://bugs.chromium.org/p/chromium/issues/detail?id=663288#c5

[Martin Sandve Alnæs]

Chromium devs have looked into the issue above and found it's a bug caused by including x3dom.js twice. @plscott @garth-wells can you try to figure out a way around that? And possibly file a bug with x3dom if it needs to be fixed there.

[Martin Sandve Alnæs]

I've filed an issue with x3dom: https://github.com/x3dom/x3dom/issues/687

[Martin Sandve Alnæs]

Fixed in x3dom.