Hi dnamic
I guess you're trying to add preload for the font file of FA 4.7.0 like guy in above topic, right?
The font is imported via the CSS file, there is no specific link so you can add the preload param, here is an example:
@font-face {
font-family: 'FontAwesome';
src: url('../fonts/fontawesome-webfont.eot?v=4.7.0');
src: url('../fonts/fontawesome-webfont.eot?#iefix&v=4.7.0') format('embedded-opentype'), url('../fonts/fontawesome-webfont.woff2?v=4.7.0') format('woff2'), url('../fonts/fontawesome-webfont.woff?v=4.7.0') format('woff'), url('../fonts/fontawesome-webfont.ttf?v=4.7.0') format('truetype'), url('../fonts/fontawesome-webfont.svg?v=4.7.0#fontawesomeregular') format('svg');
font-weight: normal;
font-style: normal;
}
You can try to add the link as mentioned in above topic:
<link rel="preload" href="/plugins/system/t4/themes/base/vendors/font-awesome/fonts/fontawesome-webfont.woff2?v=4.7.0" as="font" type="font/woff2" crossorigin>
and test again.