I once came across an SO answer that gave a Chrome URL to navigate to, that had a button to "enable" JS console logging. After enabling the logging, that tab would show the console logs of other Chrome tabs.
I know this answer seems like a duplicate, but I'm having a lot of trouble finding how to do that again. It was super convenient since it gave the console logs on any Chrome browser without needing a USB connected.
Any ideas? I know I came across it in an SO question about iOS debugging.