my $mech = WWW::Mechanize::Chrome->new(
    headless => 0,
    launch_arg => [ " --enable-logging", "--v=1" ]
);

##</code><code>##

[10576:11820:1029/142219.260:ERROR:chrome_browser_main_extra_parts_metrics.cc(230)] crbug.com/1216328: Checking Bluetooth availability started. Please report if there is no report that this ends.
[10576:11820:1029/142219.260:ERROR:chrome_browser_main_extra_parts_metrics.cc(233)] crbug.com/1216328: Checking Bluetooth availability ended.