Just an admin button – WordPress plugin

Hide the admin bar when previewing your site
Tested with 6.9.4
Copy and paste this URL into your WordPress site to embed
<blockquote class="wp-embedded-content" data-secret="TKC2Y02AXh"><a href="https://wordpress.org/plugins/just-an-admin-button/">Just an admin button</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://wordpress.org/plugins/just-an-admin-button/embed/#?secret=TKC2Y02AXh" width="600" height="400" title="&#8220;Just an admin button&#8221; &#8212; Plugin Directory" data-secret="TKC2Y02AXh" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script>
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