Check http statusCode

lib/content.js

@@ -23,13 +23,23 @@ const getIndexContent = (options, callback) => {
 const getIndexTemplate = (options, callback) => {
   try {
     const url = `${options.root}/${templateName}`
+    httpGet(url, callback)
+  } catch (err) {
+    callback(err)
+  }
+}
+
+const httpGet = (url, callback) => {
+  try {
     const isHttps = new URL(url).protocol === 'https:'
     const get = isHttps ? https.get : http.get
-    get(url, resp => {
+    get(url, res => {
+      const { statusCode } = res
+      if (statusCode !== 200) callback(new Error(`Status Code ${statusCode}`))
       let data = ''
-      resp.on('data', chunk => { data += chunk })
-      resp.on('end', () => { callback(null, data) })
-      resp.on('err', callback)
+      res.on('data', chunk => { data += chunk })
+      res.on('end', () => { callback(null, data) })
+      res.on('err', callback)
     })
   } catch (err) {
     callback(err)