From ad10fb24f333ca1a9b47b553652eaa8d085456b0 Mon Sep 17 00:00:00 2001
From: Matthias Wilhelm <matthias.wilhelm@elastic.co>
Date: Fri, 23 Aug 2019 10:20:07 +0200
Subject: [PATCH] Catch fetchSurroundingDocs missing anchor (#43661) (#43835)

---
 src/legacy/core_plugins/kibana/public/context/api/context.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/legacy/core_plugins/kibana/public/context/api/context.ts b/src/legacy/core_plugins/kibana/public/context/api/context.ts
index be99fa63b07cc..baecf8a673521 100644
--- a/src/legacy/core_plugins/kibana/public/context/api/context.ts
+++ b/src/legacy/core_plugins/kibana/public/context/api/context.ts
@@ -72,6 +72,9 @@ function fetchContextProvider(indexPatterns: IndexPatterns, Private: IPrivate) {
     size: number,
     filters: Filter[]
   ) {
+    if (typeof anchor !== 'object' || anchor === null) {
+      return [];
+    }
     const indexPattern = await indexPatterns.get(indexPatternId);
     const searchSource = await createSearchSource(indexPattern, filters);
     const sortDirToApply = type === 'successors' ? sortDir : reverseSortDir(sortDir);