如何将bean添加到窗口对象？

Question

I try to add bean to window object, this in the account detail view. In order to manipulate your data with javascript. I try the following. I try the following

function display()
{
    $bean = json_encode($this->bean);

    $javascript = <<<EOT
        <script>
            window.bean = {$bean};
        </script>
EOT;

    parent::display();

    echo $javascript;
}

when I inspect window.bean from the console I get undefined, if instead of $bean I use another value like some text window.bean shows the correct content

Interestingly if I try this code in an environment that is not suitecrm

$bean = json_encode(['name' => 'nami', 'email' => '[e-mail]']);

    $javascript = <<<EOT
        <script>
            window.bean = {$bean};
        </script>
EOT;

echo $javascript;

I get the expected result

<script>
    window.bean = {"name":"nami","email":"[e-mail]"};
</script>

Thanks for your comments