IM trying to change the WooCommerce loading spinner icon. It's defined in the woocommerce.css:

```
.woocommerce .blockUI.blockOverlay::before {
    height: 1em;
    width: 1em;
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -.5em;
    margin-top: -.5em;
    content: '';
    -webkit-animation: spin 1s ease-in-out infinite;
    animation: spin 1s ease-in-out infinite;
    background: url(../images/icons/loader.svg) center center;
    background-size: cover;
    line-height: 1;
    text-align: center;
    font-size: 2em;
    color: rgba(0,0,0,.75);
}

```

I've tried changing the loader.svg with a custom css:

```
.woocommerce .blockUI.blockOverlay::before {
     background: url(http://www.localhost.de/wp-content/uploads/custom-loader.svg) center center !important;
}

```

But the icon will not change. So I've googled a bit and found this here:

```
add_filter( 'woocommerce_ajax_loader_url', 'custom_loader_icon', 10, 1 );
function custom_loader_icon() {
    return __( get_home_path() . 'wp-content/uploads/custom-loader.svg', 'woocommerce' );
}

```

But the loading spinner icon is still the same. What can I do to change it? I don't know what I should try now...