diff --git a/js/src/tools/sanitizer.js b/js/src/tools/sanitizer.js
index 797159bcc0..0e83bde477 100644
--- a/js/src/tools/sanitizer.js
+++ b/js/src/tools/sanitizer.js
@@ -37,7 +37,7 @@ export const DefaultWhitelist = {
   h5: [],
   h6: [],
   i: [],
-  img: ['src', 'alt', 'title', 'width', 'height'],
+  img: ['src', 'srcset', 'alt', 'title', 'width', 'height'],
   li: [],
   ol: [],
   p: [],