fix(defaults): set proper Accept-Encoding for server side (#176)

Author: jericopulvera

Diff for: lib/plugin.template.js

@@ -148,26 +148,33 @@ const setupProgress = (axios, ctx) => {
 }<% } %>
 
 export default (ctx, inject) => {
-  const axiosOptions = {
-    // baseURL
-    baseURL : process.browser
+  // baseURL
+  const baseURL = process.browser
       ? '<%= options.browserBaseURL %>'
-      : (process.env._AXIOS_BASE_URL_ || '<%= options.baseURL %>'),
-
-    // Create fresh objects for all default header scopes
-    // Axios creates only one which is shared across SSR requests!
-    // https://github.com/mzabriskie/axios/blob/master/lib/defaults.js
-    headers: {
-      common : {
-        'Accept': 'application/json, text/plain, */*'
-      },
-      delete: {},
-      get: {},
-      head: {},
-      post: {},
-      put: {},
-      patch: {}
-    }
+      : (process.env._AXIOS_BASE_URL_ || '<%= options.baseURL %>')
+
+  // Create fresh objects for all default header scopes
+  // Axios creates only one which is shared across SSR requests!
+  // https://github.com/mzabriskie/axios/blob/master/lib/defaults.js
+  const headers = {
+    common : {
+      'Accept': 'application/json, text/plain, */*'
+    },
+    delete: {},
+    get: {},
+    head: {},
+    post: {},
+    put: {},
+    patch: {}
+  }
+
+  if (process.server) {
+    headers.common['Accept-Encoding'] = 'gzip, deflate'
+  }
+                             
+  const axiosOptions = {
+    baseURL,
+    headers
   }
 
   <% if (options.proxyHeaders) { %>