galen setup script tying to fix `clientWidth` in Browsers showing a vertical scrollbar

galen-setup.js

function setup() {  
  
  // create driver and other stuff
  // ...

  driver.get(url);

  var realWidth = inject(driver, 'return document.documentElement.clientWidth');
  if (realWidth < size.width) {
    var w = 2 * size.width - realWidth;
    console.log("clientWidth is " + realWidth + ". Correcting width to: " + w);
    com.galenframework.utils.GalenUtils.resizeDriver(driver, "" + w + "x" + size.height);
    console.log("fixed clientWidth: " + inject(driver, 'return document.documentElement.clientWidth'));
  }
  
  return driver;
}