Instead of always reporting a colno and lineno of zero try and use the
values from the Error object that may be provided, falling back to the
source location of the invocation if not provided. We can definitely
improve the reporting even more, but this is a start!
Also update this function to latest spec while we're in the area.
This isn't a full fix, as the paint function does not handle this
either. But instead of getting the bitmap from the image source
immediately, follow the spec a bit more closely by creating the
CanvasPatern object with the ImageSource directly.
Fixes a crash for the 5 included WPT tests.
This matches the behavior of other browsers, which always set the dirty
checkedness flag when setting checkedness, except when setting the
`checked` content attribute.
This change causes explicit role=none and role=presentation attribute
values to be ignored in cases where the elements for which those values
are specified are either focusable, or have global ARIA attributes —
per https://w3c.github.io/aria/#conflict_resolution_presentation_none.
This change implements the role-checking requirement from the ARIA spec
at https://w3c.github.io/aria/#document-handling_author-errors_roles
that the “form” and “region” roles are required to have accessible
names — and that if they don’t have accessible names as required, UAs
must treat them as if they’d not been specified at all.
This change causes explicitly-specified role attributes to be ignored in
the case where the specified role is “orphaned” — that is, when its
element lacks a required ancestor with an appropriate role.
Previously, `percentage_of` would be called on the previous value,
potentially changing its numeric type, yet this potential change
was never reflected as the old numeric type was always used. Now,
the numeric type will be re-calculated every time after the
percentage is resolved. As well, VERIFY checks have been placed to
uphold the requirements for the numeric types to match what the
actual values are.
