MAGETWO-94790: Fatal error during Magento installation via browser

Author: Joan He

app/design/adminhtml/Magento/backend/web/app/setup/styles/less/pages/_common.less

@@ -19,6 +19,12 @@
     padding-top: @main__indent-top;
 }
 
+.menu-wrapper {
+    .logo-static {
+        pointer-events: none;
+    }
+}
+
 //
 //  Header
 //  _____________________________________________

setup/pub/styles/setup.css

@@ -6,13 +6,6 @@
 
 // @codingStandardsIgnoreFile
 
-use Magento\Backend\Model\UrlInterface;
-use Magento\Framework\App\ObjectManager;
-
-$objectManager = ObjectManager::getInstance();
-/** @var Magento\Backend\Model\UrlInterface $backendUrl */
-$backendUrl = $objectManager->get(UrlInterface::class);
-
 ?>
 <?php $expressions = []; foreach ( $this->main as $item ): ?>
     <?php $expressions[] = '!$state.is(\'' . $item['id'] . '\')';
@@ -27,13 +20,13 @@ $backendUrl = $objectManager->get(UrlInterface::class);
     ng-show="<?= implode( '&&', $expressions) ?>"
     >
 <nav class="admin__menu" ng-controller="mainController">
-    <a href="<?= $backendUrl->getBaseUrl() . $backendUrl->getAreaFrontName(); ?>"
-        class="logo"
+    <span
+        class="logo logo-static"
         data-edition="Community Edition">
         <img class="logo-img"
              src="./pub/images/logo.svg"
              alt="Magento Admin Panel">
-    </a>
+    </span>
     <ul id="nav" role="menubar">
         <li class="item-home level-0" ng-class="{_active: $state.current.name === 'root.home'}">
             <a href="" ui-sref="root.home">