New TextMetrics object in canvas

We intended to add attributes FontBoundingBoxAscent and fontBoundingBoxDescent to textmetrics in canvas (following spec This feature will help web developers to arrange text better and it has strong user support (

Status in Chromium


No active development (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • In development
  • No signal
  • Shipped/Shipping
  • Strongly positive


Last updated on 2020-10-25