Socket.log is a [very] simple socket relay for console.log for use on legacy devices, often in obscure situations. The particular itch that needed scratching in this case was Android WebViews.
Note this was only ever built as a quick fix, so it's untested, etc etc.
npm install socket.log
Should work on pretty much anything – will use WebSockets where available, and fall back to XMLHTTPRequest where it has to.
Start the server:npm start
Run a console window in a browser, go to http://localhost:8088, and open the JS console (CMD+ALT+J in Chrome).
Let the logging fun commence.