JS-Memory-Analysor is not working

I got this problem after finishing the installation, and my window is now blank. Kindly help us to fix this, Thanks in advance

```
Uncaught (in promise) TypeError: document.registerElement is not a function
at Object.UI.registerCustomElement (:9999/ui/UIUtils.js:1181)
at eval (:9999/ui/UIUtils.js:1359)
at eval (:9999/ui/UIUtils.js:1505)
at eval ()
at evaluateScript (Runtime.js:187)
at scriptSourceLoaded (Runtime.js:171)
at async Promise.all (:9999/index 42)
```

Start by reproducing the blank window after installation and inspect UI/UIUtils.js around line 1181, where the stack trace reports the failure. Trace the related calls at lines 1359 and 1505 and confirm the fix by ensuring the window loads without the reported document.registerElement error.

Written by the indexing model from the issue text.