code: private void handleJSIncludeNode(ReplayParseContext context, TagNode tagNode) {
  		String file = tagNode.getAttribute("SRC");
  		if (file != null) {
  			String result = jsBlockTrans.transform(context, file);
  			// URL rewrite is done by AttributeRewriter, which should ignore
  			// empty value.
  			if (result == null || result.isEmpty()) {
  				tagNode.setAttribute("SRC", "");
  			}
  		}
  	}
docs: kludgy support for selectively disabling JavaScript that messes up
  replay.
  <p>
  If {@code jsBlockTrans.transform} returns {@code null} or empty for
  {@code SCRIPT/@SRC}, {@code SCRIPT} element is disabled by replacing
  {@code SRC} attribute with empty value. {@link DisableJSIncludeRewriteRule}
  provides one implementation to make use of this behavior.
  </p>
  @param context {@link ReplayParseContext}
  @param tagNode {@code SCRIPT} tag.
  @see DisableJSIncludeRewriteRule