Contact Form 7 is not redirecting the "Thank-You" page with the removal of CSS and JS of plugins

I was working on on-site speed optimization. I removed the css and js files of the Contact Form 7 plugin. Through the following code in function.php

function rjs_lwp_contactform_css_js() {
        global $post;
        if( is_a( $post, 'WP_Post' )  has_shortcode( $post-post_content, 'contact-form-7') ) {
            wp_enqueue_script('contact-form-7');
             wp_enqueue_style('contact-form-7');
    
        }else{
            wp_dequeue_script( 'contact-form-7' );
            wp_dequeue_style( 'contact-form-7' );
        }
    }
    add_action( 'wp_enqueue_scripts', 'rjs_lwp_contactform_css_js');

As a result, I can't access the Thank you page. Mail goes correctly, but is not redirected to the thank you page. Showing Error after root domain: abc.com/#wpcf7-f139-o1 etc. How it is possible if I removed both files and the page also redirect.

I set Redirect Code in the Form

script
document.addEventListener( 'wpcf7mailsent', function( event ) {
    location = '/thank-you/';
}, false );
/script