You can user the #chrome-cli run option to set the probe’s browser user agent string to whatever you want.
Here’s an example:
#chrome-cli:user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36,testrtc"
Code language: PHP (php)