From f67b27e0092d07c1b28926932bdb1f54113d076e Mon Sep 17 00:00:00 2001
From: David Kaltschmidt <david.kaltschmidt@gmail.com>
Date: Tue, 17 Jul 2018 12:24:04 +0200
Subject: [PATCH] Dont parse empty explore state from url

- only parse url state if there is any
- prevents parse exception in the console on empty explore state
---
 public/app/containers/Explore/Explore.tsx | 24 ++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/public/app/containers/Explore/Explore.tsx b/public/app/containers/Explore/Explore.tsx
index 81e1922d2cd..e393ce7bf88 100644
--- a/public/app/containers/Explore/Explore.tsx
+++ b/public/app/containers/Explore/Explore.tsx
@@ -31,18 +31,20 @@ function makeTimeSeriesList(dataList, options) {
   });
 }
 
-function parseInitialState(initial) {
-  try {
-    const parsed = JSON.parse(decodePathComponent(initial));
-    return {
-      datasource: parsed.datasource,
-      queries: parsed.queries.map(q => q.query),
-      range: parsed.range,
-    };
-  } catch (e) {
-    console.error(e);
-    return { queries: [], range: DEFAULT_RANGE };
+function parseInitialState(initial: string | undefined) {
+  if (initial) {
+    try {
+      const parsed = JSON.parse(decodePathComponent(initial));
+      return {
+        datasource: parsed.datasource,
+        queries: parsed.queries.map(q => q.query),
+        range: parsed.range,
+      };
+    } catch (e) {
+      console.error(e);
+    }
   }
+  return { datasource: null, queries: [], range: DEFAULT_RANGE };
 }
 
 interface IExploreState {