latex editor gives no indication when it is killed due to running out of time

[williamstein]

1. Make a latex file like this:

\documentclass{article}
\usepackage{sagetex}
\begin{document}
Consider $\sage{factor(2^997-1)}$...
\end{document}

2. Build it. -- of course sage can't factor that huge number, so it times out
3. You don't see an error anywhere though, saying that Sage was timed out.

---

To work on this, edit the file cocalc/src/smc-webapp/frame-editors/latex-editor/sagetex.ts and change the timeout from 360 to something smaller like 5.

There may be similar problems with other timeouts (e.g., for rmd-editor and r markdown). [hsy] this is #4378 now.

[williamstein]

See #3783

The plan for this is: (1) there should be NO TIMEOUT -- users do really serious things sometimes with latex processing, and (2) the user should be able to explicitly stop the ongoing running latex process, just like interrupting a running jupyter cell. @haraldschilly is working on this, in conjunction with #7722

[williamstein]

Closing this in favor of #3783