fix: broken test

Author: knsv

cypress/platform/render-after-error.html

@@ -11,9 +11,9 @@
         </div>
 
         <script src="./mermaid.js"></script>
-        <script>mermaid.init({ startOnLoad: false, securityLevel: 'sandbox' });
+        <script>mermaid.init({ startOnLoad: false });
 
-         mermaid.mermaidAPI.initialize({ securityLevel: 'sandbox' });
+         mermaid.mermaidAPI.initialize({ securityLevel: 'strict' });
 
          try {
            console.log('rendering');