diff --git a/packages/core/src/tools/fetch-logger.js b/packages/core/src/tools/fetch-logger.js
index b940ec59b..693adec20 100644
--- a/packages/core/src/tools/fetch-logger.js
+++ b/packages/core/src/tools/fetch-logger.js
@@ -3,6 +3,7 @@ const _ = require('lodash');
 const { ALLOWED_HTTP_DATA_CONTENT_TYPES } = require('./http');
 
 const stringifyRequestData = (data) => {
+  // Be careful not to consume the data if it's a stream
   if (typeof data === 'string') {
     return data;
   } else if (data instanceof URLSearchParams) {