Menu is always mobile on Chrome

Changing pages.css (and I also changed pages.scss)

@media all and (min-width: 768px) {
  body:after { /* Used by script.js to determine breakpoint */
    content: 'minw768';
-   display: none;
+  display:block;
+ color:white;
  }

Fixes the issue in Chrome...
Not sure of trickle down issues with this change but I present it here for consideration

I noticed the trigger 'minw768' shows because it is now displayed as block. I added color:white; as that worked for my background. I know this is not optimal but until the maintainer, or someone else, presents a fix this will work. I may look at this again for a better fix.

This is what I ended up doing until a consensus is reached on a fix:

I created a 1px x 1px transparent gif named minw768.gif and placed it in neptune/images

I changed pages.css in neptune/css and pages.scss in neptune/sass

/*
 * Media queries
 */
@media all and (min-width: 768px) {
  body:after { /* Used by script.js to determine breakpoint */
 -  content: 'minw768';
 -  content: display: none;
  +   content:url(/sites/all/themes/neptune/images/minw768.gif);
  +  display: block;
  }

I changed script.js in neptune/js

 // If necessary, trigger miniNav().
      // Note: the body:after content is generated via a media query in pages.scss.
      // See: http://adactio.com/journal/5429/ for an explanation.
      var size = window.getComputedStyle(document.body,':after').getPropertyValue('content');
   -    if (size.indexOf("minw768") == -1) {
  +    if (size.indexOf("/sites/all/themes/neptune/images/minw768.gif") == -1) {
        miniNav();
      }
      // On window resize...
      $(window).resize(function() {
        // Retrieve body:after.
        var size = window.getComputedStyle(document.body,':after').getPropertyValue('content');
        // If necessary, trigger miniNav().
  -      if (size.indexOf("minw768") == -1 && $("#nav-togg").length == 0) {
 +     if (size.indexOf("/sites/all/themes/neptune/images/minw768.gif") == -1 && $("#nav-togg").length == 0) {
          miniNav();
        }
        // If necessary, remove #nav-togg and show the #navigation div.
   -   else if (size.indexOf("minw768") != -1 && $("#nav-togg").length > 0) {
   +  else if (size.indexOf("/sites/all/themes/neptune/images/minw768.gif") != -1 && $("#nav-togg").length > 0) {
          $('#nav-togg').remove();
          $('#navigation').show();
        }

This fix works around the Chrome bug that was causing the initial issue of always showing the mini nav.