Error when expanding large R data frame in Variables tab

[jmcphers]

Discussed in https://github.com/posit-dev/positron-beta/discussions/220

^{Originally posted by **mikemahoney218** June 20, 2024} Hi all, When clicking to expand a large data frame in the Variables tab, I get the following error:  What happens next seems to vary; I've sometimes had this freeze the console so all input is ignored, and sometimes I've had the arrow in the Variables pane then turn down, even though it hasn't been expanded:  If the console freezes, I need to restart Positron entirely, not just the R session, to get it back.

[jmcphers]

I can reproduce this by creating an enormous dataset -- try repeatedly doubling the rows and columns of the nycflights13::flights dataset until it is about the same size as Mike's dataset. It won't expand in the Variables pane any longer.

> foo <- nycflights13::flights
> foo <- rbind(foo, foo)
> foo <- rbind(foo, foo)
> foo <- rbind(foo, foo)
> foo <- rbind(foo, foo)
> foo <- cbind(foo, foo)

[jmcphers]

Reported again in https://github.com/posit-dev/positron/issues/3833.

[jmcphers]

Reported on Mastodon too: https://mastodon.online/@hrbrmstr@mastodon.social/112966300026506969