diff --git a/.travis.yml b/.travis.yml
index 1581319..9a8a8e1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,15 +27,8 @@ jobs:
       on:
         tags: true
 
-  - stage: coverage
-    node_js: '6'
-    deploy:
-      provider: script
-      script: npm run coverage
-      on:
-        branch: master
-      on:
-        branch: develop
 env:
   global:
     secure: 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
+script:
+  - if [ "$TRAVIS_PULL_REQUEST" == "false" ]; then npm run coverage-publish; fi
diff --git a/lib/bindings/http/emitter_binary_0_1.js b/lib/bindings/http/emitter_binary_0_1.js
index 299d959..642beb9 100644
--- a/lib/bindings/http/emitter_binary_0_1.js
+++ b/lib/bindings/http/emitter_binary_0_1.js
@@ -11,7 +11,7 @@ function HTTPBinary(configuration){
 
   this.config["headers"]
     [Constants.HEADER_CONTENT_TYPE] =
-      Constants.MIME_CE_JSON + "; charset=" + Constants.CHARSET_DEFAULT;
+      Constants.MIME_JSON + "; charset=" + Constants.CHARSET_DEFAULT;
 }
 
 HTTPBinary.prototype.emit = function(cloudevent){
@@ -33,10 +33,10 @@ HTTPBinary.prototype.emit = function(cloudevent){
   _headers["CE-Source"] = cloudevent.getSource();
   _headers["CE-EventID"] = cloudevent.getId();
 
-  // OPTIONAL ATTRIBUTES
   if(cloudevent.getEventTypeVersion()) {
     _headers["CE-EventTypeVersion"] = cloudevent.getEventTypeVersion();
   }
+
   if(cloudevent.getTime()) {
     _headers["CE-EventTime"] = cloudevent.getTime();
   }
diff --git a/lib/bindings/http/emitter_binary_0_2.js b/lib/bindings/http/emitter_binary_0_2.js
index 5a97584..f8bb057 100644
--- a/lib/bindings/http/emitter_binary_0_2.js
+++ b/lib/bindings/http/emitter_binary_0_2.js
@@ -12,7 +12,7 @@ function HTTPBinary02(configuration){
 
   this.config["headers"]
     [Constants.HEADER_CONTENT_TYPE] =
-      Constants.MIME_CE_JSON + "; charset=" + Constants.CHARSET_DEFAULT;
+      Constants.MIME_JSON + "; charset=" + Constants.CHARSET_DEFAULT;
 }
 
 HTTPBinary02.prototype.emit = function(cloudevent){
@@ -23,17 +23,24 @@ HTTPBinary02.prototype.emit = function(cloudevent){
   // Always set stuff in _config
   var _headers = _config["headers"];
 
-  _headers[Constants.HEADER_CONTENT_TYPE] = cloudevent.getContenttype();
+  // OPTIONAL CONTENT TYPE ATTRIBUTE
+  if (cloudevent.getContenttype()) {
+    _headers[Constants.HEADER_CONTENT_TYPE] = cloudevent.getContenttype();
+  }
 
   _headers[Constants.BINARY_HEADERS_02.TYPE] = cloudevent.getType();
   _headers[Constants.BINARY_HEADERS_02.SPEC_VERSION] =
     cloudevent.getSpecversion();
   _headers[Constants.BINARY_HEADERS_02.SOURCE] = cloudevent.getSource();
   _headers[Constants.BINARY_HEADERS_02.ID] = cloudevent.getId();
+
   if(cloudevent.getTime()) {
     _headers[Constants.BINARY_HEADERS_02.TIME] = cloudevent.getTime();
   }
-  _headers[Constants.BINARY_HEADERS_02.SCHEMA_URL] = cloudevent.getSchemaurl();
+
+  if (cloudevent.getSchemaurl()) {
+    _headers[Constants.BINARY_HEADERS_02.SCHEMA_URL] = cloudevent.getSchemaurl();
+  }
 
   // Set the cloudevent payload
   _config["data"] = cloudevent.format().data;
diff --git a/package.json b/package.json
index 2c85bee..29efb8f 100644
--- a/package.json
+++ b/package.json
@@ -1,11 +1,11 @@
 {
   "name": "cloudevents-sdk",
-  "version": "0.2.2",
+  "version": "0.2.3",
   "description": "CloudEvents SDK for JavaScript",
   "main": "index.js",
   "scripts": {
-    "test": "./node_modules/.bin/mocha -C test/**/*.js",
-    "coverage": "./node_modules/.bin/istanbul cover -x '**/test/**' _mocha --report lcovonly -- -R spec && cat ./coverage/lcov.info | ./node_modules/.bin/codacy-coverage && rm -rf ./coverage"
+    "test": "./node_modules/.bin/istanbul cover -x 'test/**/*.js' _mocha -- -C test/**/*.js",
+    "coverage-publish": "./node_modules/.bin/istanbul cover -x 'test/**/*.js' _mocha --report lcovonly -- -C test/**/*.js -R spec && cat ./coverage/lcov.info | ./node_modules/.bin/codacy-coverage && rm -rf ./coverage"
   },
   "repository": {
     "type": "git",