feat: do not process 'null' as a WebSocket event listener (#184)

src/channel/channel.js

@@ -1153,13 +1153,14 @@ class ZitiChannel {
               if (len > 2000) {
                 len = 2000;
               }
-              this._zitiContext.logger.trace("recv <- unencrypted_data (first 2000): %s", m1.substring(0, len));
+              this._zitiContext.logger.trace("recv <- unencrypted_data (first 2000): ", m1.substring(0, len));
 
               //
               // let dbgStr = m1.substring(0, len);
               // this._zitiContext.logger.trace("recv <- data (first 2000): %s", dbgStr);
 
-            } catch (e) {   
+            } catch (e) {
+              // console.log('sodium.to_string error: ', e)
             }
 
             bodyView = unencrypted_data.message;

src/context/context.js

@@ -1267,7 +1267,7 @@ class ZitiContext extends EventEmitter {
     let config = result(find(this._services, function(obj) {
       return obj.name === name;
     }), 'config');
-    this.logger.trace(`getServiceConfigByName() service[${name}] has config[${config}]`);
+    this.logger.trace(`getServiceConfigByName() service[${name}] has config: `, config);
 
     if (isUndefined(config)) {
       // Let any listeners know there are no configs associated with the given service,
@@ -2337,9 +2337,13 @@ class ZitiContext extends EventEmitter {
           counter: request.counter
         };
 
-        let body = res.pipe(new PassThrough( response_options ));
-
-        let response = new HttpResponse(body, response_options);
+        let response;
+        if (isEqual(res.statusCode, 204)) {
+          response = new HttpResponse(null, response_options);
+        } else {
+          let body = res.pipe(new PassThrough( response_options ));
+          response = new HttpResponse(body, response_options);
+        }
 
         for (const hdr in response_options.headers) {
           if (response_options.headers.hasOwnProperty(hdr)) {

src/http/ziti-websocket-wrapper.js

@@ -434,6 +434,7 @@ readyStates.forEach((readyState, i) => {
      * @public
      */
     set(listener) {
+      if (isNull(listener) || isUndefined(listener)) { return; }
       const listeners = this.listeners(method);
       for (let i = 0; i < listeners.length; i++) {
         //