js/plugins/drupalentity/plugin.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/js/plugins/drupalentity/plugin.js b/js/plugins/drupalentity/plugin.js
index a6ad599..f56d57f 100644
--- a/js/plugins/drupalentity/plugin.js
+++ b/js/plugins/drupalentity/plugin.js
@@ -140,7 +140,7 @@
         parts: {
           entity: 'drupal-entity'
           // parts#caption is not set because it's not a separate HTML element when downcasted, just an attribute.
-          // parts#link defined in widget#init
+          // parts#link is not set but defined in widget#init because it wraps the downcasted widget HTML.
         },
 
         upcast: function (element, data) {
@@ -215,6 +215,9 @@
           if (dataToHash.attributes['data-caption']) {
             delete dataToHash.attributes['data-caption'];
           }
+          if (dataToHash.link && dataToHash.link.href) {
+            delete dataToHash.link.href;
+          }
           return JSON.stringify(dataToHash);
         },