We intended to add attributes FontBoundingBoxAscent and fontBoundingBoxDescent to textmetrics in canvas (following spec https://html.spec.whatwg.org/multipage/canvas.html#textmetrics). This feature will help web developers to arrange text better and it has strong user support (https://crbug.com/277215).

Status in Chromium


Enabled by default (tracking bug)

Consensus & Standardization

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

  • In development
  • Shipped/Shipping
  • Strongly positive


Last updated on 2021-12-13