Q: Running Chrome Webrtc Logs Due to some problem with failing Datachannel (onmessage stop working after 1 hour - approximately 1 GB data send), I was trying to get WebRTC logs on newest Chrome (57) for Windows. 
I was trying with official instrction from https://webrtc.org/web-apis/chrome/
chrome.exe --enable-logging --vmodule=*/webrtc/*=2,*/libjingle/*=2,*=-2 --no-sandbox

And with redirected output 
--user-data-dir=d:/ChromeRedirected

But without success. 
I get chrome_debug.log but without any info from webrtc modules - have any one similar problem ? Are there any resolutions for that ? 

A: After a few weeks of frustration I have get one Mac from my friend and on it everything is working like a charm 
Please note that you have to also set v level for entire chrome to get any logs 
So correct command for Mac looks like below 
open /Applications/Google\ Chrome.app --args --enable-logging --v=4  --vmodule=*/webrtc/*=1

and then logs are posted to
~/Libraries/Application Support/Google/Chrome/chrome_debug.log

It looks like there is a bug in Windows version of chrome which doesn't let you to see any logs from WebRTC. 
