diff --git a/inst/www/htmlwidgets.js b/inst/www/htmlwidgets.js
index 1067d02..cdc4363 100644
--- a/inst/www/htmlwidgets.js
+++ b/inst/www/htmlwidgets.js
@@ -25,14 +25,6 @@
     }
   }
 
-  function asArray(value) {
-    if (value === null)
-      return [];
-    if ($.isArray(value))
-      return value;
-    return [value];
-  }
-
   // Implement jQuery's extend
   function extend(target /*, ... */) {
     if (arguments.length == 1) {
@@ -317,80 +309,6 @@
     find: function(scope) {
       return querySelectorAll(scope, "." + this.name);
     },
-    renderError: function(el, err) {
-      var $el = $(el);
-
-      this.clearError(el);
-
-      // Add all these error classes, as Shiny does
-      var errClass = "shiny-output-error";
-      if (err.type !== null) {
-        // use the classes of the error condition as CSS class names
-        errClass = errClass + " " + $.map(asArray(err.type), function(type) {
-          return errClass + "-" + type;
-        }).join(" ");
-      }
-      errClass = errClass + " htmlwidgets-error";
-
-      // Is el inline or block? If inline or inline-block, just display:none it
-      // and add an inline error.
-      var display = $el.css("display");
-      $el.data("restore-display-mode", display);
-
-      if (display === "inline" || display === "inline-block") {
-        $el.hide();
-        if (err.message !== "") {
-          var errorSpan = $("<span>").addClass(errClass);
-          errorSpan.text(err.message);
-          $el.after(errorSpan);
-        }
-      } else if (display === "block") {
-        // If block, add an error just after the el, set visibility:none on the
-        // el, and position the error to be on top of the el.
-        // Mark it with a unique ID and CSS class so we can remove it later.
-        $el.css("visibility", "hidden");
-        if (err.message !== "") {
-          var errorDiv = $("<div>").addClass(errClass).css("position", "absolute")
-            .css("top", el.offsetTop)
-            .css("left", el.offsetLeft)
-            // setting width can push out the page size, forcing otherwise
-            // unnecessary scrollbars to appear and making it impossible for
-            // the element to shrink; so use max-width instead
-            .css("maxWidth", el.offsetWidth)
-            .css("height", el.offsetHeight);
-          errorDiv.text(err.message);
-          $el.after(errorDiv);
-
-          // Really dumb way to keep the size/position of the error in sync with
-          // the parent element as the window is resized or whatever.
-          var intId = setInterval(function() {
-            if (!errorDiv[0].parentElement) {
-              clearInterval(intId);
-              return;
-            }
-            errorDiv
-              .css("top", el.offsetTop)
-              .css("left", el.offsetLeft)
-              .css("maxWidth", el.offsetWidth)
-              .css("height", el.offsetHeight);
-          }, 500);
-        }
-      }
-    },
-    clearError: function(el) {
-      var $el = $(el);
-      var display = $el.data("restore-display-mode");
-      $el.data("restore-display-mode", null);
-
-      if (display === "inline" || display === "inline-block") {
-        if (display)
-          $el.css("display", display);
-        $(el.nextSibling).filter(".htmlwidgets-error").remove();
-      } else if (display === "block"){
-        $el.css("visibility", "inherit");
-        $(el.nextSibling).filter(".htmlwidgets-error").remove();
-      }
-    },
     sizing: {}
   };