How to show contextual links / quick edit links for blocks I'm building a Drupal 8 template/theme from scratch, and it is not showing the contextual editing options for my blocks when I view a site page. I.E., the little circles that are clicked to see options like "edit view," "configure block,"  etc. 

I cloned the block.html.twig from the Bartik theme, so it has the attributes token that I thought was enough, like this: 

&lt;div{{ attributes.addClass(classes) }}&gt;
 {{ title_prefix }}
 {% if label %}
   &lt;h2{{ title_attributes }}&gt;{{ label }}&lt;/h2&gt;
 {% endif %}
 {{ title_suffix }}
 {% block content %}
   &lt;div{{ content_attributes.addClass('content') }}&gt;
     {{ content }}
   &lt;/div&gt;
 {% endblock %}
 &lt;/div&gt;


I can confirm the Contextual links module is active. 

I have global access, so it shouldn't be a permissions issue. 

Is there something more I need to do for this feature to be added in?
Per 'No Sssweat's comment above, this was due to a small syntax error in a custom javascript file, viewable in console. Once corrected, the contextual links worked as intended.