diff --git a/Block/SentryScript.php b/Block/SentryScript.php
index 81e2657..b8ce75d 100644
--- a/Block/SentryScript.php
+++ b/Block/SentryScript.php
@@ -102,6 +102,35 @@ public function useScriptTag(): bool
         return $this->dataHelper->useScriptTag();
     }
 
+    /**
+     * Assembles and returns the JS script path.
+     */
+    public function getJsUrl(): string
+    {
+        $bundleFile = $this->dataHelper->getLoaderScript();
+        if ($bundleFile) {
+            return $bundleFile;
+        }
+
+        $bundleFile = 'bundle';
+
+        if ($this->isTracingEnabled()) {
+            $bundleFile .= '.tracing';
+        }
+
+        if ($this->useSessionReplay()) {
+            $bundleFile .= '.replay';
+        }
+
+        $bundleFile .= '.min.js';
+
+        return sprintf(
+            'https://browser.sentry-cdn.com/%s/%s',
+            $this->getJsSdkVersion(),
+            $bundleFile
+        );
+    }
+
     /**
      * Whether to enable session replay.
      */
diff --git a/Helper/Data.php b/Helper/Data.php
index d4f0aee..25f9ead 100644
--- a/Helper/Data.php
+++ b/Helper/Data.php
@@ -95,6 +95,7 @@ class Data extends AbstractHelper
         'cron_monitoring_enabled'             => ['type' => 'bool'],
         'track_crons'                         => ['type' => 'array'],
         'enable_csp_report_url'               => ['type' => 'bool'],
+        'loader_script'                       => ['type' => 'string'],
     ];
 
     /**
@@ -234,6 +235,16 @@ public function getJsSdkVersion(): string
         return $this->collectModuleConfig()['js_sdk_version'] ?: SentryScript::CURRENT_VERSION;
     }
 
+    /**
+     * Get the loaderscript copied from Sentry.
+     *
+     * @return string The url to sentry's loading script e.g. https://js.sentry-cdn.com/x0xx00x.min.js
+     */
+    public function getLoaderScript(): string
+    {
+        return $this->collectModuleConfig()['loader_script'];
+    }
+
     /**
      * Get the current environment.
      *
diff --git a/Model/Collector/SentryRelatedCspCollector.php b/Model/Collector/SentryRelatedCspCollector.php
index cec3e69..04ceab2 100644
--- a/Model/Collector/SentryRelatedCspCollector.php
+++ b/Model/Collector/SentryRelatedCspCollector.php
@@ -34,6 +34,22 @@ public function collect(array $defaultPolicies = []): array
                 ['https://browser.sentry-cdn.com']
             );
 
+            $policies[] = new FetchPolicy(
+                'script-src',
+                false,
+                ['https://js.sentry-cdn.com']
+            );
+
+            $customLoader = $this->dataHelper->getLoaderScript();
+            $customLoaderHost = is_string($customLoader) ? UriFactory::factory($customLoader) : null;
+            if ($customLoaderHost !== null) {
+                $policies[] = new FetchPolicy(
+                    'script-src',
+                    false,
+                    [$customLoaderHost->getScheme().'://'.$customLoaderHost->getHost()]
+                );
+            }
+
             $dsn = $this->dataHelper->getDsn();
             $dsnHost = is_string($dsn) ? UriFactory::factory($dsn)->getHost() : null;
             if (!empty($dsnHost)) {
diff --git a/view/frontend/templates/script/sentry.phtml b/view/frontend/templates/script/sentry.phtml
index aec6b32..7421077 100644
--- a/view/frontend/templates/script/sentry.phtml
+++ b/view/frontend/templates/script/sentry.phtml
@@ -8,26 +8,7 @@ if (!$block->canUseScriptTag($block->getNameInLayout())) {
 ?>
 
 <?php if ($this->useScriptTag()): ?>
-    <?php
-        $bundleFile = 'bundle';
-
-    if ($block->isTracingEnabled()) {
-        $bundleFile .= '.tracing';
-    }
-
-    if ($block->useSessionReplay()) {
-        $bundleFile .= '.replay';
-    }
-
-        $bundleFile .= '.min.js';
-
-        $remoteFile = sprintf(
-            'https://browser.sentry-cdn.com/%s/%s',
-            $escaper->escapeHtmlAttr($block->getJsSdkVersion()),
-            $bundleFile
-        );
-    ?>
-    <?= /* @noEscape */ $secureRenderer->renderTag('script', ['src' => $remoteFile, 'crossorigin' => 'anonymous']) ?>
+    <?= /* @noEscape */ $secureRenderer->renderTag('script', ['src' => $block->getJsUrl(), 'crossorigin' => 'anonymous']) ?>
     <?= /* @noEscape */ $secureRenderer->renderTag('script', [], $block->getLayout()->createBlock(\JustBetter\Sentry\Block\SentryScript::class)
         ->setTemplate('JustBetter_Sentry::script/sentry_init.phtml')
         ->toHtml(), false); ?>