Modified README

Author: anthonygauthier

README.md

@@ -1,6 +1,7 @@
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/8a2f2a06171248acb6411a2d870558c8)](https://app.codacy.com/app/antho325/jmeter-elasticsearch-backend-listener?utm_source=github.com&utm_medium=referral&utm_content=delirius325/jmeter-elasticsearch-backend-listener&utm_campaign=Badge_Grade_Dashboard)
 [![Build Status](https://travis-ci.org/delirius325/jmeter-elasticsearch-backend-listener.svg?branch=master)](https://travis-ci.org/delirius325/jmeter-elasticsearch-backend-listener)
 
+
 # Overview
 ### Description
 JMeter ElasticSearch Backend Listener is a JMeter plugin enabling you to send test results to an ElasticSearch engine. It is meant as an alternative live-monitoring tool to the built-in "InfluxDB" backend listener of JMeter. 
@@ -52,5 +53,9 @@ Move the resulting JAR to your `JMETER_HOME/lib/ext`.
 ### Sample Grafana dashboard
 ![screnshot1](https://image.ibb.co/jW6LNx/Screen_Shot_2018_03_21_at_10_21_18_AM.png "Sample Grafana Dashboard")
 
+### Supporting the author
+
+[![patreon](https://c5.patreon.com/external/logo/become_a_patron_button.png)](https://www.patreon.com/bePatron?u=17797269)
+
 ### For more info
 For more information, here's a little [documentation](https://github.com/delirius325/jmeter-elasticsearch-backend-listener/wiki).

src/main/java/io/github/delirius325/jmeter/backendlistener/elasticsearch/ElasticSearchMetric.java

@@ -199,10 +199,12 @@ private void parseHeadersAsJsonProps(boolean allReqHeaders, boolean allResHeader
                 String[] header = lines[i].split(":");
 
                 // if not all req headers and header contains special X-tag
-                if(!this.allReqHeaders && header[0].startsWith("X-es-backend")) {
-                    this.json.put(header[0].replaceAll("es-", "").trim(), header[1].trim());
-                } else {
-                    this.json.put(header[0].replaceAll("es-", "").trim(), header[1].trim());
+                if(header.length > 0) {
+                    if(!this.allReqHeaders && header[0].startsWith("X-es-backend")) {
+                        this.json.put(header[0].replaceAll("es-", "").trim(), header[1].trim());
+                    } else {
+                        this.json.put(header[0].replaceAll("es-", "").trim(), header[1].trim());
+                    }
                 }
             }
         }

src/main/java/io/github/delirius325/jmeter/backendlistener/elasticsearch/ElasticsearchBackendClient.java

@@ -129,7 +129,7 @@ public void handleSampleResults(List<SampleResult> results, BackendListenerConte
                 try {
                     this.sender.addToList(new Gson().toJson(metric.getMetric(context)));
                 } catch (Exception e) {
-                    logger.error("The ElasticSearch Backend Listener was unable to a sampler to the list of samplers to send... More info in JMeter's console.");
+                    logger.error("The ElasticSearch Backend Listener was unable to add sampler to the list of samplers to send... More info in JMeter's console.");
                     e.printStackTrace();
                 }
             }