Merge pull request #6853 from blockscout/fix-503-page

Fix 503 page

CHANGELOG.md

@@ -28,6 +28,7 @@
 
 ### Chore
 
+- [#6853](https://github.com/blockscout/blockscout/pull/6853) - Fix 503 page
 - [#6845](https://github.com/blockscout/blockscout/pull/6845) - Extract Docker-compose services into separate files
 - [#6834](https://github.com/blockscout/blockscout/pull/6834) - Take into account FIRST_BLOCK in "Total blocks" counter on the main page
 - [#6340](https://github.com/blockscout/blockscout/pull/6340) - Rollback to websocket_client 1.3.0
@@ -2223,4 +2224,4 @@ Reverting of synchronous block counter, implemented in #1848
 
 - [https://github.com/blockscout/blockscout/pull/1532](https://github.com/blockscout/blockscout/pull/1532) - Upgrade elixir to 1.8.1
 - [https://github.com/blockscout/blockscout/pull/1553](https://github.com/blockscout/blockscout/pull/1553) - Dockerfile: remove 1.7.1 version pin FROM bitwalker/alpine-elixir-phoenix
-- [https://github.com/blockscout/blockscout/pull/1465](https://github.com/blockscout/blockscout/pull/1465) - Resolve lodash security alert
+- [https://github.com/blockscout/blockscout/pull/1465](https://github.com/blockscout/blockscout/pull/1465) - Resolve lodash security alert

apps/block_scout_web/assets/static/503.html

@@ -187,6 +187,7 @@
                     </div>
                     <div class="block-not-found-content">
                         <h1 class="card-title error-title">Service unavailable</h1>
+                        <h2>::CLOUDFLARE_ERROR_500S_BOX::</h2>
                         <p class="error-descr">Hang on… we’re working on a fix! Please come back soon to try again.</p>
                         <a class="error-btn" href="/">Back to home</a>
                     </div>
@@ -196,4 +197,4 @@
     </div>
 </body>
 
-</html>
+</html>