1 files changed, 7 insertions, 2 deletions
diff --git a/app/assets/javascripts/alert_management/details.js b/app/assets/javascripts/alert_management/details.js
index dccf990f0b4..c2020dfcbe3 100644
--- a/app/assets/javascripts/alert_management/details.js
+++ b/app/assets/javascripts/alert_management/details.js
@@ -1,5 +1,6 @@
 import Vue from 'vue';
 import VueApollo from 'vue-apollo';
+import produce from 'immer';
 import { defaultDataIdFromObject } from 'apollo-cache-inmemory';
 import createDefaultClient from '~/lib/graphql';
 import createRouter from './router';
@@ -16,8 +17,11 @@ export default selector => {
   const resolvers = {
     Mutation: {
       toggleSidebarStatus: (_, __, { cache }) => {
-        const data = cache.readQuery({ query: sidebarStatusQuery });
-        data.sidebarStatus = !data.sidebarStatus;
+        const sourceData = cache.readQuery({ query: sidebarStatusQuery });
+        const data = produce(sourceData, draftData => {
+          // eslint-disable-next-line no-param-reassign
+          draftData.sidebarStatus = !draftData.sidebarStatus;
+        });
         cache.writeQuery({ query: sidebarStatusQuery, data });
       },
     },
@@ -34,6 +38,7 @@ export default selector => {
           return defaultDataIdFromObject(object);
         },
       },
+      assumeImmutableResults: true,
     }),
   });