Issue with Bootstrap 5 offcanvas: TypeError - Unable to access 'parentNode' property of undefined

When looping through a list to create a table of information and offcanvas menus that display additional details when a table row <tr> is clicked, I am encountering the "parentNode" error. I'm unsure why this error is happening.

The <tr> element has a "data-bs-target" attribute pointing to the correct "id" for the Offcanvas feature, but it seems to be unable to locate the parentNode.

View Error Message

<table class="table table-hover table-sm" id="t1">
  <thead class="table-secondary">
    <th scope="col" class="name">
      Host Name
    </th>
    <th scope="col" class="ip_address">
      IP Address
    </th>

         ... 

  </thead>
  <tbody class="lan-table">
    {% for host in hosts %}

      <tr class="host-row" data-view='host' data-bs-toggle="offcanvas" data-bs-target="#{{host.fqdn}}-host-details">
        <td class="host-fqdn"></td>
        <td class="host-ip-address"></td>

           ...

      </tr>
    {% endfor %}
  </tbody>
</table>

...

{% for host in hosts %}
  <div class="offcanvas offcanvas-end w-25" data-bs-scroll="true" tabindex="-1" id="{{host.fqdn}}-host-details" style="min-width: 400px;">

    ...

  </div>
{% endfor %}

Here is a screenshot showing the correct generation of the page. Please note that I have obscured my domain name for security reasons as it includes fqdn information. See Static HTML Page

Answer №1

After some investigation, I finally discovered the root cause of why my offcanvas was not functioning correctly. It turns out that the unique identifiers in my "data-bs-target" attribute contained period characters, which caused issues with the JavaScript querySelector method used by offcanvas. In order for it to work properly, special characters need to be escaped.

For more information on this topic, you can refer to this helpful link: Document.querySelector()

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