Avoid uncaught error resource (http calls)

frontend/src/app/sentry/sentry-reporter.ts

@@ -84,7 +84,9 @@ export class SentryReporter implements ErrorReporter {
           debug: !environment.production,
           ignoreErrors: [
             // Transition movements,
-            'The transition has been superseded by a different transition'
+            'The transition has been superseded by a different transition',
+            // Uncaught error resource promises
+            'Uncaught (in promise): [ErrorResource'
           ]
         });