Speculating here, but will confirm later from a Mac. This has been confirmed to be working on a Mac.

Win ctrl+click or a Mac command+click gets picked up by a "normal" click listener, just like a click with any other modifier key (alt+click, shift+click etc).

This is particularly confusing since a ctrl+click on a Mac gets interpreted as a right-click on OS level. Command-click, on the other hand, is not interpreted as a middle-click but rather is a browser preference.

Assuming that you do not have in-site functionality that specifically relies on modified clicks, it would be appropriate to exclude such events from click listeners, and instead allow for them to bubble up to be natively handled by the browser. Given the experience of someone in the similar situation, you should be able to add the following to click handlers (likely a delegate on library level as pointed out by Brilliand):

if (e.metaKey || e.ctrlKey) return;

When added at the beginning of the handler with e referring to a current click event, this should circumvent any following e.preventDefault();

Update:

It actually works! In this rather minimalistic fiddle, I am able to recognize when command-clicked or control-clicked, so as to avoid executing the rest of the click handler which includes ajax-fetching the content and e.preventDefault();. This allows for a command-click to be handled "as intended" on a Mac, i.e. opening the link in a new tab.

With this finding in mind, these lines should now read

if (e.isDefaultPrevented() || e.metaKey || e.ctrlKey) {
    return;
}

When you select some text in the cmd.exe window, the process will carry on in the background until the next time it writes to Standard Output (or STDOUT, the data stream which is shown in the cmd.exe window).

When you exit the selection mode, the process will resume as normal.

You can test this by typing ping www.google.com -t into your cmd.exe window, and selecting some area of the output. You'll see it pause, and when you deselect the output will resume.

Edit: As per Fran's comment, you can use a tool such as Wireshark to see that activity does still happen after the point when you made the selection, and then stops.