diff --git a/plugin-designs/my-upg-100-list/upg-100-mfe.vue b/plugin-designs/my-upg-100-list/upg-100-mfe.vue
index 48a954944..2471d658d 100644
--- a/plugin-designs/my-upg-100-list/upg-100-mfe.vue
+++ b/plugin-designs/my-upg-100-list/upg-100-mfe.vue
@@ -392,13 +392,7 @@ useShadowStyles(PANE_GRID_STYLES + `
 
 <template>
   <div class="upgmfe">
-    <!-- data-map-area="share-fallback": THIS HEADER IS THE SHARE MENU'S AREA, declared rather than discovered
-         (2026-10-03). ShareButton's fallback looks for its area during render, before layout, when
-         offsetParent is still null, so it settled on its own parent, the narrow .hdr-btns: the menu
-         clamped to its 200px floor and opened at left:48px of the header, far from a button at the right
-         (measured at 1440 and 390, en and ar). Declared here, MapControlMenu finds the header by closest():
-         the menu opens beside the button at the maps' width, inside the viewport, mirrored in RTL. -->
-    <header class="hdr" data-map-area="share-fallback">
+    <header class="hdr">
       <ViewSelect
         :views="spec.panes"
         :current="view"