fix: added null check for DT headers. (#107)

* fix: added null check for DT headers.  #106

* chore:update newrelic ios agent

Author: ndesai-newrelic

package.json

@@ -1,6 +1,6 @@
 {
   "name": "newrelic-cordova-plugin",
-  "version": "7.0.5",
+  "version": "7.0.6",
   "description": "New Relic Cordova Plugin for iOS and Android",
   "repo": "https://github.com/newrelic/newrelic-cordova-plugin/",
   "scripts": {

plugin.xml

@@ -6,7 +6,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
 <plugin xmlns="http://apache.org/cordova/ns/plugins/1.0"
-  id="newrelic-cordova-plugin" version="7.0.5">
+  id="newrelic-cordova-plugin" version="7.0.6">
   <name>NewRelic</name>
   <description>New Relic Cordova Plugin for iOS and Android</description>
   <author>New Relic</author>
@@ -18,7 +18,7 @@
     <engine name="cordova-android" version=">=5.0.0" />
   </engines>
 
-  <preference name="PLUGIN_VERSION" default="7.0.4" />
+  <preference name="PLUGIN_VERSION" default="7.0.6" />
   <preference name="CRASH_REPORTING_ENABLED" default="true" />
   <preference name="DISTRIBUTED_TRACING_ENABLED" default="true" />
   <preference name="INTERACTION_TRACING_ENABLED" default="true" />
@@ -79,7 +79,7 @@
         <source url="https://cdn.cocoapods.org/" />
       </config>
       <pods use-frameworks="true">
-        <pod name="NewRelicAgent" spec="~>7.5.3" />
+        <pod name="NewRelicAgent" spec="~>7.5.4" />
       </pods>
     </podspec>
 

www/js/newrelic.js

@@ -512,11 +512,19 @@
                 console.error(e);
             } finally{
                     var headers = generateTracePayload();
-                   
-            this.setRequestHeader("newrelic", headers['newrelic']);
-            this.setRequestHeader("traceparent", headers['traceparent']);
-            this.setRequestHeader("tracestate", headers['tracestate']);
-             networkRequest.params = headers;
+                    console.debug(headers);
+                    if (headers !== null) {
+                      if (headers['newrelic']) {
+                          this.setRequestHeader("newrelic", headers['newrelic']);
+                      }
+                      if (headers['traceparent']) {
+                      this.setRequestHeader("traceparent", headers['traceparent']);
+                      }
+                      if (headers['tracestate']) {
+                      this.setRequestHeader("tracestate", headers['tracestate']);
+                      }
+                      networkRequest.params = headers;
+                  }
                 }
     }