@sean Thank you!!

To put a website in the mirror, we put the code below in the module folder and
we put the code ‘config.js’ in the ‘MMM-iframe’ in it.
Mirror view will appear normally, but the web site specified in ‘MM-iframe’ will not appear.

The picture below shows the ‘npm start and stop’ log.
(아래 사진은 ‘npm start and stop’ 로그입니다.)

I’d like to launch the web using myframe, but there’s no response.
Please help me.This is the code I wrote.

~/MagicMirror/modules/default/MMM-iFrame/MMM-iFrame .js

/* global Module */

/* Magic Mirror
 * Module: iFrame
 *
 * By Ben Williams http://desertblade.com
 * MIT Licensed.
 */

Module.register("MMM-iFrame",{
                // Default module config.
                defaults: {
                                height:"100px",
                                width:"100%",
                                updateInterval: 0.5 * 60 * 1000,
                                url: "http://www.naver.com",
                                scrolling: "no"
                },

        start: function () {
                self = this;
                var count = 0;
                if (this.config.url.length > 0 ) {
                      setInterval( function () {
                         self.updateDom(1000);
                         console.log('update' + count++)
                         }, this.config.updateInterval);
                }
        },
  getRandomInt: function (min, max) {
    return Math.floor(Math.random() * (max - min)) + min;
  },
resume: function() {
   console.log("Resuming");
   return this.getDom();
},

        // Override dom generator.
        getDom: function() {
                var iframe = document.createElement("IFRAME");
                iframe.style = "border:0"
                iframe.width = this.config.width;
                iframe.height = this.config.height;
                iframe.scrolling = this.config.scrolling;
                var url_index = 0;
         //       console.log("currentURL:" + this.currentURL);
                var repeat = true;
                while(repeat) {
                    url_index = this.getRandomInt(0,this.config.url.length);
                    futureURL = this.config.url[url_index];
                    console.log("URL_length:" + this.config.url.length + " " + "URL_index:" + url_index + " " + "url:" + futureURL);
           //         if( futureURL == currentURL) {
                        iframe.src = futureURL;
             //           currentURL = futureURL;
                        repeat = false;
               //     }
                }
                return iframe;
              }
});

~/MagicMirror/config/config.js

                        }
                },

{
                        module: "newsfeed",
                        position: "bottom_bar",
                        config: {
                                feeds: [
                                        {
                                                title: "New York Times",
                                                url: "http://www.nytimes.com/services/xml/rss/nyt/HomePage.xml"
                                        }
                                ],
                                showSourceTitle: true,
                                showPublishDate: true
                        }
                },
        {
                module: "MMM-iFrame",
                position: "middle_center",      // This can be any of the regions.
                config: {
                        // See 'Configuration options' for more information.
                                url: "http://www.naver.com",  // as many URLs you want or you can just ["ENTER IN URL"] if single URL.
                                updateInterval: 0.5 * 60 * 1000, // rotate URLs every 30 seconds
                                width: "100%", // Optional. Default: 100%
                                height: "100px" //Optional. Default: 100px
                        }

        },
        ]

};

/*************** DO NOT EDIT THE LINE BELOW ***************/
if (typeof module !== "undefined") {module.exports = config;}