The following tests rely on Latin Modern Math to test fraction linethickness. They are skipped on iOS/macOS/win platforms: * mathml/opentype/fraction-line.html was added in bug 155639 to test OpenType MATH parameters for fraction, but these are now tested by LayoutTests/imported/mathml-in-html5/mathml/presentation-markup/fractions/frac-parameters-*.html * mathml/presentation/fractions-linethickness.html could use the same WOFF font as frac-parameters-*.html too.
Created attachment 335289 [details] Patch
Created attachment 335291 [details] Patch
Created attachment 335412 [details] Patch
Comment on attachment 335412 [details] Patch Great work!
Committed r229533: <https://trac.webkit.org/changeset/229533>