command_line->AppendSwitch("enable-begin-frame-scheduling");
// https://bitbucket.org/chromiumembedded/cef/issues/2717/xmlhttprequest-empty-responsetext
command_line->AppendSwitch("enable-begin-frame-scheduling");
// https://bitbucket.org/chromiumembedded/cef/issues/2717/xmlhttprequest-empty-responsetext