Rules / viewport rules

viewport.content.scale

Default

error

Plugin

viewport

The viewport content includes initial-scale=1.

Why: Without initial-scale=1, some phones zoom the page when it loads, or when the device turns.

When off: viewports without it pass.

<!-- ✗ Fails -->
<meta name="viewport" content="width=device-width" />

<!-- ✓ Passes -->
<meta name="viewport" content="width=device-width, initial-scale=1" />

References

• MDN: The viewport meta element: initial-scale=1 sets the zoom when the page loads.