added working fallback if req.getHeader() is missing for plain http library

Author: nicklas-dohrn

cf-nodejs-logging-support-plainhttp/log-plainhttp.js

@@ -30,7 +30,9 @@ var logNetwork = function (req, res) {
     }
 
     if (typeof req.getHeader != "function") {
-        req.getHeader = () => { return null; };
+        req.getHeader = function (header) {
+            return this.headers[header.toLocaleLowerCase()]; 
+        };
     }
 
     var token = req.headers[core.getDynLogLevelHeaderName()];

config.js

@@ -277,7 +277,7 @@ var config = [
         mandatory: true,
         source: {
             type: "header",
-            name: "X-CorrelationID"
+            name: "x-correlationid"
         },
         fallback: (req, res, logObject) => {
             return uuid();

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cf-nodejs-logging-support",
-  "version": "5.2.1",
+  "version": "5.2.2",
   "description": "Logging tool for Cloud Foundry",
   "keywords": [
     "logging",