Kilotest: Diagnoses of element in head invalid violation by HTML element 1 on Northwest Natural Gas page

Basics

About the Northwest Natural Gas page

About HTML element 1

About the element in head invalid issue

Diagnoses

Here is how tools diagnose the element in head invalid issue for HTML element 1 of the Northwest Natural Gas page.

  1. Expected <code><iframe allowtransparency="true" scrolling="no" src="https://fast.wistia.com/embed/iframe_shim?domain=net" style="height: 1px; left: -200px; position: absolute; top: -200px; width: 1px; direction: ltr;"></iframe></code> not to be a child of <code><head></code>.

    Tool: ASLint (eSSENTIAL Accessibility)

    Rule: elements_not_allowed_in_head