Fons van der Plas

Nice! Could you also make a PR to Malt to add this consistency as a test?

No my suggestion is to add a **test** to Malt for this behaviour, to guarantee that this will continue working in future Malt versions, since you depend on it.

Thanks @cstjean! Let's implement it in Pluto! The first step here is to **figure out how this is done in the REPL**. Maybe you can find it by searching the...

Clicking to see more is definitely possible! Not too hard to implement. We can start by showing just the truncated stack frame. Later, we can implement clicking-to-see-more by adding both...

@cstjean Could you also post a snippet of code that generates a very long stack trace? EDIT this one is used by the Julia tests, check the difference between Pluto...

@cstjean If you have more ideas please let us know!

We can add this the `use_treeviewer` trait to AbstractPlutoDingetjes! Feel free to make the PRs

Nice! I would be happy to add this to AbstractPlutoDingetjes if someone can think of a good spec. We should start by collecting a list of use cases.

Can you post this in a new issue?

Thanks for the research and the nice solution! Looks good! (I changed the PR a bit to move the `redirect_original_stderr` functionality from the PlutoRunner source to the test.)