Feature request: add option for collapsing console messages

[Val Saven]

It could be more useful if you can use console.groupCollapsed instead of console.group in client.js (lines 187, 188).

[Glen Mailer]

What’s the browser support like? I’ll take a PR for this, especially if it handles a graceful fallback if the method doesn’t exist

[Val Saven]

All major browsers support it:
https://developer.mozilla.org/en-US/docs/Web/API/Console/groupCollapsed
https://www.w3schools.com/jsref/met_console_groupcollapsed.asp