Merge pull request #704 from postmanlabs/feature/avoid-using-undici-m…

…essage-event-class

Switch to node style listener to avoid using undici's (node dep) MessageEvent class

lib/bridge.js

@@ -27,20 +27,20 @@ const Flatted = require('flatted'),
         __uvm_emit = function (postMessage, args) {
             postMessage({__id_uvm: "${id}", __emit_uvm: args});
         }.bind(null, __self.postMessage.bind(__self));
-        __uvm_addEventListener = __self.addEventListener.bind(__self);
+        __uvm_on = __self.on.bind(__self);
 
         ${bridgeClientCode()}
 
         (function (emit, id) {
-            __uvm_addEventListener("message", function (e) {
-                const { __emit_uvm, __id_uvm } = e?.data || e || {};
+           __uvm_on("message", function (e) {
+                const { __emit_uvm, __id_uvm } = e || {};
                 if (typeof __emit_uvm === 'string' && __id_uvm === id) {
                     emit(__emit_uvm);
                 }
             });
         }(__uvm_dispatch, "${id}"));
         __uvm_dispatch = null; delete __uvm_dispatch;
-        __uvm_addEventListener = null; delete __uvm_addEventListener;
+        __uvm_on = null; delete __uvm_on;
 
         (function (self, bridge, setTimeout) {
             ${Worker.__exceptionHandler}

lib/worker.browser.js

@@ -32,7 +32,14 @@ class WebWorker {
         callback && callback();
     }
 
-    static __self = 'self';
+    static __self = `(function () {
+        self.on = function (name, listener) {
+            return self.addEventListener(name, function (e) {
+                listener(e.data);
+            });
+        };
+        return self;
+    }())`;
 
     static __exceptionHandler = `
     ((close) => {