Can't load load dead clicks or exception autocapture in browser extension

[kirankunigiri]

Bug Description

Followed the docs to setup posthog in a browser extension here: https://posthog.com/docs/advanced/browser-extension, but I'm seeing errors for loading dead clicks and exception autocapture. I'm using Vite with WXT.

This is what my code looks like:

import 'posthog-js/dist/web-vitals';
import 'posthog-js/dist/posthog-recorder';
import 'posthog-js/dist/exception-autocapture';
import 'posthog-js/dist/dead-clicks-autocapture';
import { PostHog, PostHogConfig } from 'posthog-js/dist/module.no-external';
import { PostHogProvider } from 'posthog-js/react';

const posthogOptions: Partial<PostHogConfig> = {
	api_host: import.meta.env.VITE_PUBLIC_POSTHOG_HOST,
	defaults: '2025-11-30',
	debug: import.meta.env.MODE === 'development',
	disable_external_dependency_loading: true,
	persistence: 'localStorage',
	disable_surveys: true,
	error_tracking: {
		captureExtensionExceptions: true,
	},
};

export const initPosthog = () => {
	const posthog = new PostHog();
	posthog.init(import.meta.env.VITE_PUBLIC_POSTHOG_KEY, posthogOptions);
	return posthog;
};

While this fixes errors with loading session recording, I'm still getting these errors for dead clicks + exception autocapture, even though I imported the exception-autocapture and dead-clicks-autocapture files. The fact that it does work for recording sessions but not the others makes me unsure if the issue is with my config or with PostHog.

[PostHog.js] [Dead Clicks] failed to load script Loading of external scripts is disabled
[PostHog.js] [ExceptionAutocapture] failed to load script Loading of external scripts is disabled

Am I missing anything in my config?