code: @Override
  	protected void performGlobalBundleLinksRendering(BundleRendererContext ctx, Writer out, boolean debugOn)
  			throws IOException {
  
  		if (isForcedToRenderIeCssBundleInDebug(ctx, debugOn)) {
  			ResourceBundlePathsIterator resourceBundleIterator = bundler.getGlobalResourceBundlePaths(
  					DebugMode.FORCE_NON_DEBUG_IN_IE, new ConditionalCommentRenderer(out), ctx.getVariants());
  			while (resourceBundleIterator.hasNext()) {
  				BundlePath globalBundlePath = resourceBundleIterator.nextPath();
  				renderIeCssBundleLink(ctx, out, globalBundlePath);
  			}
  		} else {
  
  			super.performGlobalBundleLinksRendering(ctx, out, debugOn);
  		}
  	}
docs: Performs the global bundle rendering
  
  @param ctx
  the context
  @param out
  the writer
  @param debugOn
  the flag indicating if we are in debug mode or not
  @throws IOException
  if an IO exception occurs