Update heapdumpWorker.js

Author: paulrutter

lib/heapdumpWorker.js

@@ -1,4 +1,5 @@
 let fs = require('fs');
+let dns = require("dns");
 
 // set global variables based on args passed on to this heapdump worker
 let devToolsPort = process.argv[2];
@@ -18,6 +19,12 @@ writeStream.on('error', (err) => {
     handleError("Heapdump path not valid or writable", err);
 });
 
+try {
+  dns.setDefaultResultOrder('ipv4first');
+} catch (e) {
+  // ignore, method not available before node16
+} 
+
 CDP({
     host: 'localhost',
     port: devToolsPort
@@ -46,4 +53,4 @@ CDP({
     });
 }).on('error', (err) => {
     handleError(err);
-});
+});