← back to v144 · enhanced-canvas-textmetrics
conformance · v144
v144 · enhanced-canvas-textmetrics — conformance probe
5 assertions drawn from the spec. Each is a single contract the spec text makes. Pass/fail reflects what this browser executed; blocked means the contract was not run because it needs user mediation, hardware, or another unavailable precondition. Open the page in Chrome stable / canary / Firefox / Safari to compare.
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| id | contract | kind | verdict | detail |
|---|---|---|---|---|
getSelectionRects-on-textmetrics |
TextMetrics exposes selection-rect APIs when implemented and always exposes standard width metrics. spec ↗ | script | … | |
getActualBoundingBox-on-textmetrics |
TextMetrics exposes substring bounding-box APIs when implemented and always exposes standard bounding box fields. spec ↗ | script | … | |
getTextClusters-on-textmetrics |
TextMetrics exposes getTextClusters when implemented, with Intl.Segmenter available as the standard grapheme fallback. spec ↗ | script | … | |
fillTextCluster-on-context |
CanvasRenderingContext2D exposes fillTextCluster when implemented and always exposes fillText. spec ↗ | script | … | |
selection-rects-returns-list |
getSelectionRects returns an array-like when implemented; otherwise standard TextMetrics width remains readable. spec ↗ | script | … |