Zooming and scaling must not be disabled

Critical

What is the problem?

The <meta name="viewport"> tag can be used to control the way a website is displayed on mobile devices. However, if it is not configured correctly, it can prevent users from zooming in on text to make it easier to read.

Impacted Groups

Low Vision

Why is this important?

Many people, especially those with visual impairments, rely on zooming in to read text on smaller screens. If a website prevents zooming, it can make the content inaccessible to these users.

How to solve this issue

To fix this issue, ensure that the <meta name="viewport"> tag is configured to allow users to zoom in on text. This typically involves setting the initial-scale and user-scalable attributes appropriately.

Rule Information

Rule ID

meta-viewport

Severity

Critical

Manual Review Required

No

Rule Group

WCAG 2.0 Level A & AA Rules

Guidelines

  • WCAG 2.1 (AA)
  • WCAG 2.0 (AA)
  • WCAG 2.2 (AA)
  • EN 301 549

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