in reply to Re^2: Can't Find Form with WWW::Mechanize::Chrome
in thread Can't Find Form with WWW::Mechanize::Chrome

$mech->click_button(id => 'loginBtn');

Untested, should the id be prefixed with #? 'A selector prefixed with '#' must match the id attribute of the input'.

$mech->click_button(id => '#loginBtn');