Creating a custom img tag in contact form 7

Created a custom [img] tag for contact form 7 to image the current post/product. I managed to display an image of the product in the feedback form that I created, but I cannot convey this image in the letter. I’ve tried different options:

• Generated a url of the type uploads/data/…/.jpg (since the documentation says that for security reasons, everything that is behind the /wp-content/ aisles will not be considered.
• I used the [img] tag in the area for attached files and in the body of the letter.
• I set the name [img img-name] and used it in the area for attached files and in the body of the letter.

Nothing helped. If someone knows how I can solve this issue. Please tell me.

My function

/**
 * Return product image for CF7 tag.
 *
 * @param array $tag
 * @return string
 */
function custom_add_form_tag_img_handler($tag) {
    global $post; // Use $post to get the current post object.

    // Check if we're on a WooCommerce product page.
    if (function_exists('is_product') && is_product()) {
        $product_id = get_the_ID(); // Get the current post (product) ID.
        $product = wc_get_product($product_id); // Get the product object.

        $image_url = get_the_post_thumbnail_url($product_id);

        if ($image_url) {
            return '<img src="' . esc_url($image_url) . '" alt="Изображение товара">';
        }

		// if ($image_url) {
        //     return ltrim(wp_make_link_relative(esc_url($image_url)), '/wp-content/' );
        // }
    }

    return '';
}

/**
 * Hook to add custom 'img' tag to CF7.
 * Usage in CF7: [img]
 */
function custom_add_form_tag_img() {
    wpcf7_add_form_tag('img', 'custom_add_form_tag_img_handler', array( 'name-attr' => true ));
}

add_action('wpcf7_init', 'custom_add_form_tag_img');

The page I need help with: [log in to see the link]