diff --git a/app/assets/javascripts/issue_show/index.js b/app/assets/javascripts/issue_show/index.js
index aca9dec2a96..a21ce41e65e 100644
--- a/app/assets/javascripts/issue_show/index.js
+++ b/app/assets/javascripts/issue_show/index.js
@@ -5,7 +5,7 @@ import '../vue_shared/vue_resource_interceptor';
 
 document.addEventListener('DOMContentLoaded', () => {
   const initialDataEl = document.getElementById('js-issuable-app-initial-data');
-  const initialData = JSON.parse(initialDataEl.innerHTML.replace(/"/g, '"'));
+  const props = JSON.parse(initialDataEl.innerHTML.replace(/"/g, '"'));
 
   $('.issuable-edit').on('click', (e) => {
     e.preventDefault();
@@ -18,32 +18,9 @@ document.addEventListener('DOMContentLoaded', () => {
     components: {
       issuableApp,
     },
-    data() {
-      return {
-        ...initialData,
-      };
-    },
     render(createElement) {
       return createElement('issuable-app', {
-        props: {
-          canUpdate: this.canUpdate,
-          canDestroy: this.canDestroy,
-          endpoint: this.endpoint,
-          issuableRef: this.issuableRef,
-          initialTitleHtml: this.initialTitleHtml,
-          initialTitleText: this.initialTitleText,
-          initialDescriptionHtml: this.initialDescriptionHtml,
-          initialDescriptionText: this.initialDescriptionText,
-          issuableTemplates: this.issuableTemplates,
-          markdownPreviewPath: this.markdownPreviewPath,
-          markdownDocsPath: this.markdownDocsPath,
-          projectPath: this.projectPath,
-          projectNamespace: this.projectNamespace,
-          updatedAt: this.updatedAt,
-          updatedByName: this.updatedByName,
-          updatedByPath: this.updatedByPath,
-          initialTaskStatus: this.initialTaskStatus,
-        },
+        props,
       });
     },
   });
diff --git a/changelogs/unreleased/40715-updateendpoint-undefined-on-issue-page.yml b/changelogs/unreleased/40715-updateendpoint-undefined-on-issue-page.yml
new file mode 100644
index 00000000000..0328a693354
--- /dev/null
+++ b/changelogs/unreleased/40715-updateendpoint-undefined-on-issue-page.yml
@@ -0,0 +1,5 @@
+---
+title: Fix updateEndpoint undefined error for issue_show app root
+merge_request: 15698
+author:
+type: fixed