From 3dc914488c2e52968e1a5f9086c6219d24a20d18 Mon Sep 17 00:00:00 2001
From: Viktor Baranov <baranov.viktor.27@gmail.com>
Date: Fri, 9 Jul 2021 09:30:23 +0300
Subject: [PATCH] Do not redirect to 404 page with empty string in the search

---
 CHANGELOG.md                                                  | 1 +
 .../lib/block_scout_web/controllers/chain_controller.ex       | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 96cb86568a..78f634f0c8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 ### Fixes
 
 ### Chore
+- [#4355](https://github.com/blockscout/blockscout/pull/4355) - Do not redirect to 404 page with empty string in the search field
 
 
 ## 3.7.1-beta
diff --git a/apps/block_scout_web/lib/block_scout_web/controllers/chain_controller.ex b/apps/block_scout_web/lib/block_scout_web/controllers/chain_controller.ex
index 338c9096e0..ea17c13bcc 100644
--- a/apps/block_scout_web/lib/block_scout_web/controllers/chain_controller.ex
+++ b/apps/block_scout_web/lib/block_scout_web/controllers/chain_controller.ex
@@ -78,6 +78,10 @@ defmodule BlockScoutWeb.ChainController do
     %{earliest: x_days_back, latest: latest}
   end
 
+  def search(conn, %{"q" => ""}) do
+    show(conn, [])
+  end
+
   def search(conn, %{"q" => query}) do
     query
     |> String.trim()