<!DOCTYPE html>
<meta charset=utf-8>
<style>
@font-face {
  font-family: test;
  src: url(../fonts/JuniusX-Regular.woff2);
}
.test {
  font: 50px test;
}
</style>
<p>Test passes if the first line has the diacritic right-aligned over the m,
while the second line has it centered:</p>
<div class=test><span style="display:inline-block">m</span>&#xF03E;</div>
<div class=test>m&#xF03E;</div>