The cause is the missing code in Magento_Theme::js/cookie_status.phtml
<?php
$script = 'document.querySelector("#cookie-status").style.display = "none";';
?>
<?= /* @noEscape */ $secureRenderer->renderTag('script', ['type' => 'text/javascript'], $script, false); ?>
We chose not to add this code as it causes delay and potentially Cumulative Layout Shift (CLS). Our solution is to use CSS to hide the element:
#cookie-status {
display: none;
}
You can also remove the block entirely from the head by adding the following to
app/code/<vendor name>/Theme/layout/default_head_blocks.xml
<body>
<referenceContainer name="after.body.start">
<referenceBlock name="cookie-status-check" remove="true"/>
</referenceContainer>
</body>
This solution may present a problem when the element's data is required if the user has not enabled cookies.
