diff --git a/sass.dart.js b/sass.dart.js
index 512d612fa415209d754f226802ce944aba1bf787..1374f5e19dd303fb57b5fd208d933c421c046628 100644
--- a/sass.dart.js
+++ b/sass.dart.js
@@ -16,6 +16,10 @@ self.scheduleImmediate = typeof setImmediate !== "undefined"
 // CommonJS globals.
 self.exports = exports;
 
+// realm bridge utility functions
+exports.bridgeJson = (target) => JSON.parse(JSON.stringify(target))
+exports.bridgeFn = (target) => ((...args) => target(...args))
+
 // Node.js specific exports, check to see if they exist & or polyfilled
 
 if (typeof process !== "undefined") {
@@ -3700,13 +3704,6 @@ self.fs = require("fs");
         return C.PlainJavaScriptObject_methods;
       if (proto === Object.prototype)
         return C.PlainJavaScriptObject_methods;
-      if (typeof $constructor == "function") {
-        t1 = $._JS_INTEROP_INTERCEPTOR_TAG;
-        if (t1 == null)
-          t1 = $._JS_INTEROP_INTERCEPTOR_TAG = init.getIsolateTag("_$dart_js");
-        Object.defineProperty($constructor, t1, {value: C.UnknownJavaScriptObject_methods, enumerable: false, writable: true, configurable: true});
-        return C.UnknownJavaScriptObject_methods;
-      }
       return C.UnknownJavaScriptObject_methods;
     },
     JSArray_JSArray$fixed: function($length, $E) {