Make sure CSP is applied to admin scripts

Author: jissereitsma

Plugin/AddCspInlineScripts.php

@@ -0,0 +1,26 @@
+<?php declare(strict_types=1);
+
+namespace Loki\AdminComponents\Plugin;
+
+use Magento\Framework\View\Element\Template;
+use Yireo\CspUtilities\Util\ReplaceInlineScripts;
+
+class AddCspInlineScripts
+{
+    private readonly ReplaceInlineScripts $replaceInlineScripts;
+
+    public function __construct(
+        ReplaceInlineScripts $replaceInlineScripts
+    ) {
+        $this->replaceInlineScripts = $replaceInlineScripts;
+    }
+
+    public function afterToHtml(Template $block, $html): string
+    {
+        if (false === str_starts_with((string)$block->getNameInLayout(), 'loki')) {
+            return (string)$html;
+        }
+
+        return $this->replaceInlineScripts->replace((string)$html);
+    }
+}

etc/adminhtml/di.xml

@@ -3,4 +3,8 @@
     <type name="Magento\Framework\App\FrontController">
         <plugin name="Loki_AdminComponents::redirectLokiUrls" type="Loki\AdminComponents\Plugin\RedirectLokiUrlsPlugin"/>
     </type>
+
+    <type name="Magento\Framework\View\Element\Template">
+        <plugin name="Loki_AdminComponents::addCspInlineScripts" type="Loki\AdminComponents\Plugin\AddCspInlineScripts"/>
+    </type>
 </config>