diff --git a/core/modules/responsive_image/responsive_image.module b/core/modules/responsive_image/responsive_image.module
index 89ac37f..c74dcb1 100644
--- a/core/modules/responsive_image/responsive_image.module
+++ b/core/modules/responsive_image/responsive_image.module
@@ -197,17 +197,13 @@ function template_preprocess_responsive_image(&$variables) {
   }
   else {
     $variables['output_image_tag'] = FALSE;
-    // Prepare the fallback image. Use srcset in the fallback image to avoid
-    // unnecessary preloading of images in older browsers. See
-    // http://scottjehl.github.io/picturefill/#using-picture and
-    // http://scottjehl.github.io/picturefill/#gotchas for more information.
+    // Prepare the fallback image. We use the src attribute, which might cause
+    // double downloads in browsers that don't support the picture tag (might,
+    // because when picturefill kicks in, it cancels the download and triggers
+    // the download for the correct image).
     $variables['img_element'] = array(
       '#theme' => 'image',
-      '#srcset' => array(
-        array(
-          'uri' => _responsive_image_image_style_url($responsive_image_style->getFallbackImageStyle(), $image->getSource()),
-        ),
-      ),
+      '#uri' => _responsive_image_image_style_url($responsive_image_style->getFallbackImageStyle(), $image->getSource()),
     );
   }
 
diff --git a/core/modules/responsive_image/src/Tests/ResponsiveImageFieldDisplayTest.php b/core/modules/responsive_image/src/Tests/ResponsiveImageFieldDisplayTest.php
index f5b277d..aef5ec0 100644
--- a/core/modules/responsive_image/src/Tests/ResponsiveImageFieldDisplayTest.php
+++ b/core/modules/responsive_image/src/Tests/ResponsiveImageFieldDisplayTest.php
@@ -315,11 +315,7 @@ protected function doTestResponsiveImageFieldFormatters($scheme, $empty_styles =
     $fallback_image = array(
       '#theme' => 'image',
       '#alt' => $alt,
-      '#srcset' => array(
-        array(
-          'uri' => file_url_transform_relative($large_style->buildUrl($image->getSource())),
-        ),
-      ),
+      '#uri' => file_url_transform_relative($large_style->buildUrl($image->getSource())),
     );
     // The image.html.twig template has a newline after the <img> tag but
     // responsive-image.html.twig doesn't have one after the fallback image, so