Fixed the Header Implementation

Changed the Version

Author: Joshua

README.md

@@ -15,7 +15,7 @@ You can also download the newest version from the [releases](https://github.com/
 <dependency>
     <groupId>de.joshicodes</groupId>
     <artifactId>webapi</artifactId>
-    <version>1.3.1</version>
+    <version>1.3.1b</version>
 </dependency>
 ```
 

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>de.joshicodes</groupId>
     <artifactId>webapi</artifactId>
-    <version>1.3.1</version>
+    <version>1.3.1b</version>
 
     <build>
         <plugins>

src/main/java/de/joshicodes/webapi/Webserver.java

@@ -240,13 +240,15 @@ private boolean serve(Route request, HttpExchange exchange) throws IOException {
     private void write(ResponseData response, HttpExchange exchange) throws IOException {
         String body = response.getBody();
         if(body != null) {
-            exchange.sendResponseHeaders(response.getStatusCode(), body.length());
 
             if(response.getHeaders() != null)
-                response.getHeaders().forEach((key, value) -> exchange.getResponseHeaders().add(key, value));
+                response.getHeaders().forEach((key, value) -> exchange.getResponseHeaders().put(key, Arrays.asList(value.split(","))));
 
-            if(response.getContentType() != null)
+            if(response.getContentType() != null) {
                 exchange.getResponseHeaders().add("Content-Type", response.getContentType());
+            }
+
+            exchange.sendResponseHeaders(response.getStatusCode(), body.length());
 
             exchange.getResponseBody().write(body.getBytes());
             exchange.getResponseBody().close();

src/main/java/de/joshicodes/webapi/request/ResponseData.java

@@ -115,6 +115,7 @@ public Builder setContentType(String contentType) {
 
         /**
          * Sets a header of the response
+         * To set multiple headers, split the key and value with a <code>,</code><br>
          * @param key The key of the header
          * @param value The value of the header
          * @return This builder object