diff --git a/Gemfile.lock b/Gemfile.lock
index 35ae27eb..c3551b4e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -93,7 +93,7 @@ GIT
 
 GIT
   remote: git://github.com/travis-ci/travis-yaml.git
-  revision: 9ebe328e7546c696dd374a8cf773d93276f98e4f
+  revision: 032caed23af8ed1ed55e9204bb91316f3ada2f74
   specs:
     travis-yaml (0.2.0)
 
diff --git a/lib/travis/api/v2/http/build.rb b/lib/travis/api/v2/http/build.rb
index 9d8203b5..394c4ac8 100644
--- a/lib/travis/api/v2/http/build.rb
+++ b/lib/travis/api/v2/http/build.rb
@@ -17,7 +17,7 @@ module Travis
           def data
             {
               'build'  => build_data(build),
-              'commit' => commit_data(build.commit),
+              'commit' => commit_data(build.commit, build.repository),
               'jobs'   => options[:include_jobs] ? build.matrix.map { |job| job_data(job) } : [],
               'annotations' => options[:include_jobs] ? Annotations.new(annotations(build), @options).data["annotations"] : [],
             }
@@ -44,11 +44,12 @@ module Travis
               }
             end
 
-            def commit_data(commit)
+            def commit_data(commit, repository)
               {
                 'id' => commit.id,
                 'sha' => commit.commit,
                 'branch' => commit.branch,
+                'branch_is_default' => branch_is_default(commit, repository),
                 'message' => commit.message,
                 'committed_at' => format_date(commit.committed_at),
                 'author_name' => commit.author_name,
@@ -78,6 +79,10 @@ module Travis
               }
             end
 
+            def branch_is_default(commit, repository)
+              repository.default_branch == commit.branch
+            end
+
             def annotations(build)
               build.matrix.map(&:annotations).flatten
             end
diff --git a/lib/travis/api/v2/http/job.rb b/lib/travis/api/v2/http/job.rb
index 4b712b40..92366474 100644
--- a/lib/travis/api/v2/http/job.rb
+++ b/lib/travis/api/v2/http/job.rb
@@ -15,7 +15,7 @@ module Travis
           def data
             {
               'job' => job_data(job),
-              'commit' => commit_data(job.commit),
+              'commit' => commit_data(job.commit, job.repository),
               'annotations' => Annotations.new(job.annotations, @options).data["annotations"],
             }
           end
@@ -42,11 +42,12 @@ module Travis
               }
             end
 
-            def commit_data(commit)
+            def commit_data(commit, repository)
               {
                 'id' => commit.id,
                 'sha' => commit.commit,
                 'branch' => commit.branch,
+                'branch_is_default' => branch_is_default(commit, repository),
                 'message' => commit.message,
                 'committed_at' => format_date(commit.committed_at),
                 'author_name' => commit.author_name,
@@ -56,6 +57,10 @@ module Travis
                 'compare_url' => commit.compare_url,
               }
             end
+
+            def branch_is_default(commit, repository)
+              repository.default_branch == commit.branch
+            end
         end
       end
     end
diff --git a/lib/travis/api/v3.rb b/lib/travis/api/v3.rb
index 8c8be745..dd8c2af6 100644
--- a/lib/travis/api/v3.rb
+++ b/lib/travis/api/v3.rb
@@ -35,6 +35,7 @@ module Travis
       NotImplemented      = ServerError        .create('request not (yet) implemented', status: 501)
       RequestLimitReached = ClientError        .create('request limit reached for resource', status: 429)
       AlreadySyncing      = ClientError        .create('sync already in progress', status: 409)
+      MethodNotAllowed    = ClientError        .create('method not allowed', status: 405)
     end
   end
 end
diff --git a/lib/travis/api/v3/router.rb b/lib/travis/api/v3/router.rb
index 573c7c85..28085e81 100644
--- a/lib/travis/api/v3/router.rb
+++ b/lib/travis/api/v3/router.rb
@@ -15,8 +15,9 @@ module Travis::API::V3
       return service_index(env) if env['PATH_INFO'.freeze] == ?/.freeze
       metrics         = @metrics_processor.create
       access_control  = AccessControl.new(env)
-      factory, params = routes.factory_for(env['REQUEST_METHOD'.freeze], env['PATH_INFO'.freeze])
       env_params      = params(env)
+      factory, params = routes.factory_for(env['REQUEST_METHOD'.freeze], env['PATH_INFO'.freeze])
+
 
       raise NotFound unless factory
       metrics.name_after(factory)
diff --git a/spec/unit/api/v2/http/build_spec.rb b/spec/unit/api/v2/http/build_spec.rb
index 11a6dbea..f276b2b8 100644
--- a/spec/unit/api/v2/http/build_spec.rb
+++ b/spec/unit/api/v2/http/build_spec.rb
@@ -29,6 +29,7 @@ describe Travis::Api::V2::Http::Build do
       'id' => 1,
       'sha' => '62aae5f70ceee39123ef',
       'branch' => 'master',
+      'branch_is_default' => true,
       'message' => 'the commit message',
       'compare_url' => 'https://github.com/svenfuchs/minimal/compare/master...develop',
       'committed_at' => json_format_time(Time.now.utc - 1.hour),
diff --git a/spec/unit/api/v2/http/job_spec.rb b/spec/unit/api/v2/http/job_spec.rb
index a9211b6f..22fda7b6 100644
--- a/spec/unit/api/v2/http/job_spec.rb
+++ b/spec/unit/api/v2/http/job_spec.rb
@@ -31,6 +31,7 @@ describe Travis::Api::V2::Http::Job do
       'sha' => '62aae5f70ceee39123ef',
       'message' => 'the commit message',
       'branch' => 'master',
+      'branch_is_default' => true,
       'message' => 'the commit message',
       'committed_at' => json_format_time(Time.now.utc - 1.hour),
       'committer_name' => 'Sven Fuchs',
diff --git a/spec/v3/error_handling_spec.rb b/spec/v3/error_handling_spec.rb
new file mode 100644
index 00000000..b86bf917
--- /dev/null
+++ b/spec/v3/error_handling_spec.rb
@@ -0,0 +1,15 @@
+require 'spec_helper'
+
+describe Travis::API::V3::ServiceIndex do
+  let(:headers) {{  }}
+  let(:path)      { "/v3/repo/1/enable"         }
+  let(:json)      { JSON.load(response.body) }
+  let(:response)  { get(path, {}, headers)   }
+  let(:resources) { json.fetch('resources')  }
+
+  it "handles wrong HTTP method with 405 status" do
+
+    response.status.should == 405
+  end
+
+end