Fix removing preload does not remove event listener when src is present

Author: muan

index.js

@@ -236,12 +236,13 @@ class DetailsDialogElement extends HTMLElement {
 
     if (this.src) {
       details.addEventListener('toggle', loadIncludeFragment, {once: true})
-
-      if (this.preload) {
-        details.addEventListener('mouseover', loadIncludeFragment, {once: true})
-      }
     } else {
       details.removeEventListener('toggle', loadIncludeFragment)
+    }
+
+    if (this.src && this.preload) {
+      details.addEventListener('mouseover', loadIncludeFragment, {once: true})
+    } else {
       details.removeEventListener('mouseover', loadIncludeFragment)
     }
   }