TIL that includes() is also not supported in all browsers

Author: IslandRhythms

lib/model.js

@@ -1637,10 +1637,10 @@ function _ensureIndexes(model, options, callback) {
       const results = Object.keys(indexFields).map(function(key) {
         return indexFields[key];
       });
-      if (!results.includes('text')) {
-        return true;
+      if (results.indexOf('text') !== -1) {
+        return false;
       }
-      return false;
+      return true;
     };
     delete indexOptions._autoIndex;
     _decorateDiscriminatorIndexOptions(model, indexOptions);