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WordPress WordPress Customizer API Custom WordPress Customizer Settings Making the Logo Uploader Work with postMessage

Ulises Calvo
Ulises Calvo
2,233 Points

Why background-blend-mode does not render in the customizer real time postMessage?

Hello, Does anyone have an idea on why background-blend-mode is not applied in postMessage (real time) when using the WordPress Customizer?

I have an image_control that looks like this

                'default'               => get_stylesheet_directory_uri() . '/images/big-team.jpg'
                'transport'             => 'postMessage'

    new WP_Customize_Image_Control(
                'settings'              => 'parallax_image', //cta_image_uploader
                'section'               => 'team_parallax',          // cta_section
                'label'                 => __( β€˜Photo’ ),
                'description' => __( 'Upload an image of your team.',  'namastethemecustomizer' )

My styles are these:

function namaste_style_header() {
<style type ="text/css">
<?php if ( 0 < count( strlen( ( $parallax_image_url = get_theme_mod( 'parallax_image' ) ) ) ) ) { ?>
        .meet-our-team-parallax {
                  background: #232222 url( <?php echo $parallax_image_url; ?> ) no-repeat fixed; 
                  background-position: center top;
                  background-blend-mode: overlay;
                  position: relative;
                  height: 240px;
                  background-repeat: no-repeat;
                  background-attachment: fixed;
                  background-size: cover;
                  line-height: 200%;
                  color: #fff;
                  overflow: hidden;
                  padding-top: 0;
                  margin-bottom: 0; 
                <?php }  


And the JS to make the postMessage work looks like this:

wp.customize( 'parallax_image', function( value ) {
        var styles = {
                backgroundPosition: "center top",
                position: "relative",
                height: "240px",
                backgroundRepeatepeat: "no-repeat",
                backgroundAttachment: "fixed",
                backgroundSize: "cover",
                lineHeight: "200%",
                color: "#ffffff",
                overflow: "hidden",
                paddingTop: "0",
                marginBottom: "0",
                backgroundBlendMode: "overlay"
        value.bind( function( to ) {
            $( '.meet-our-team-parallax ' ).css( 'background', 'url( ' + to + ')' );   
            $( '.meet-our-team-parallax ' ).css( styles ); 
        } );

All the code runs ok, and the results after saving and when refreshing the actual page on the browser are the expected , but the issue is: the background-blend-mode: overlay; would not work within the Customizer when previewing real time.

Many thanks in advance.