404 error is returned when no releases could be found

Author: Axel Rindle

lib/check.js

@@ -54,18 +54,22 @@ const rest = (options, callback) => {
       return chunks.push(chunk.toString());
     });
     res.on('end', () => {
-      // Make sure there are no errors and try to parse the response
-      if (res.statusCode !== 200) {
-        return callback(new Error(chunks), null);
-      }
+      // parse response string into an object
       const response = chunks.join('');
       let json = null;
       try {
         json = JSON.parse(response);
       } catch (error) {
         return callback(error, null);
       }
-      if (json.message) {
+
+      // 404 error occurs, when no releases are found
+      if (res.statusCode === 404) {
+        return callback(null, null);
+      }
+
+      // status codes other than 200 are treated as an error
+      else if (res.statusCode !== 200) {
         return callback(new Error(json.message), null);
       }
       // Compare versions