(Question) How to copy the out messages from the console window ?

[yhm-amber]

The Ctrl-C will make a ^C in console means cancel, and the Ctrl-Shift-C is same as F12, and there's also not a COPY in the right click.

So, how can I make a copy from such console ?

[georgestagg]

It looks like this is a design choice in xterm.js in that it does not automatically set up handlers for Copy/Paste[1]. Instead, it is up to the application to implement Copy/Paste functionality. So, we will need to add some code into the webR Demo app to handle the Ctrl-Shift-C/V shortcuts.

In the meantime, there is a suggestion that Ctrl-Insert and Shift-Insert might work, depending on your browser.

[1] xtermjs/xterm.js#2478