Viewport <meta> element - missing

[pepelsbey]

What type of issue is this?

Missing compatibility data

What information was incorrect, unhelpful, or incomplete?

Mobile browsers have been supporting <meta name="viewport"> for years now, yet the support data is missing from BCD.

• There’s an (incomplete) CSS Viewport Module Level 1 spec listing most of the properties implemented by browsers today.

• There’s CSS Round Display Level 1 listing the viewport-fit property for the @Viewport at-rule that only Safari supports (and Chrome is working on implementation)

• Viewport is not mentioned in the HTML spec

  • There’s some activity in the 2018 issue, though

• Firefox 43 shipped support for dynamically changing viewport

• Firefox 133 recently shipped interactive-widget property (but there was nowhere to log it)

• Chrome 108 shipped interactive-widget property

• There’s viewport-fit non-standard value that might still be supported in Safari.

• Apple’s ancient docs:

  • Configuring the Viewport
  • Supported Meta Tags: viewport

• PPK’s research with some support data:

  • A tale of two viewports — part one
  • A tale of two viewports — part two
  • Meta viewport
  • Viewports test page

What browsers does this problem apply to, if applicable?

No response

What did you expect to see?

Viewport meta support data

Did you test this? If so, how?

Not really, but I know it works :)

Can you link to any release notes, bugs, pull requests, or MDN pages related to this?

• Viewport meta tag guide on MDN