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Check promise success #6

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Check promise success #6

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28 changes: 16 additions & 12 deletions critical-foft-preload-fallback-optional.html
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Original file line number Diff line number Diff line change
Expand Up @@ -60,20 +60,24 @@
document.documentElement.className += " fonts-loaded-2";
return;
} else if( "fonts" in document ) {
document.fonts.load("1em LatoSubset").then(function () {
document.documentElement.className += " fonts-loaded-1";
document.fonts.load("1em LatoSubset").then(function(fres) {
if (fres[0].length) {
document.documentElement.className += " fonts-loaded-1";

Promise.all([
document.fonts.load("400 1em Lato"),
document.fonts.load("700 1em Lato"),
document.fonts.load("italic 1em Lato"),
document.fonts.load("italic 700 1em Lato")
]).then(function () {
document.documentElement.className += " fonts-loaded-2";
Promise.all([
document.fonts.load("400 1em Lato"),
document.fonts.load("700 1em Lato"),
document.fonts.load("italic 1em Lato"),
document.fonts.load("italic 700 1em Lato")
]).then(function(fmres) {
if (fmres.every(function(f) { return f.length; })) {
document.documentElement.className += " fonts-loaded-2";

// Optimization for Repeat Views
sessionStorage.fontsLoadedCriticalFoftPreloadFallback = true;
});
// Optimization for Repeat Views
sessionStorage.fontsLoadedCriticalFoftPreloadFallback = true;
}
});
}
});
} else {
// use fallback
Expand Down