I developed two fonts with ~120 and ~170 kerning pairs respectively.
I tested in windows 10 Explorer and Edge to export to CFF and TTF with Glyphs Version 2.4 in woff and woff2 formats.
The fonts are correctly rendered in most browsers like Chrome, Mozilla and Safari but in Edge and Explorer the Kerning is not working.
I added the
Prefix: languagesystem latn dflt;
and
"Write Kern Table" = 1;
Adding the following styles the problem is fixed:
p {
text-rendering: optimizeLegibility;
font-feature-settings: âkernâ;
-webkit-font-feature-settings: âkernâ;
-moz-font-feature-settings: âkernâ;
-moz-font-feature-settings: âkern=1â;
}