Updated font display rules

assets/css/fonts.css

-@font-face{font-family:'Lato';src:url("/assets/fonts/Lato-Regular.eot");src:url("/assets/fonts/Lato-Regular.eot?#iefix") format("embedded-opentype"),url("/assets/fonts/Lato-Regular.woff2") format("woff2"),url("/assets/fonts/Lato-Regular.woff") format("woff"),url("/assets/fonts/Lato-Regular.ttf") format("truetype");font-style:normal;font-weight:normal;text-rendering:optimizeLegibility}@font-face{font-family:'Lato';src:url("/assets/fonts/Lato-Bold.eot");src:url("/assets/fonts/Lato-Bold.eot?#iefix") format("embedded-opentype"),url("/assets/fonts/Lato-Bold.woff2") format("woff2"),url("/assets/fonts/Lato-Bold.woff") format("woff"),url("/assets/fonts/Lato-Bold.ttf") format("truetype");font-style:normal;font-weight:bold;text-rendering:optimizeLegibility}@font-face{font-family:'Lato';src:url("/assets/fonts/Lato-BoldItalic.eot");src:url("/assets/fonts/Lato-BoldItalic.eot?#iefix") format("embedded-opentype"),url("/assets/fonts/Lato-BoldItalic.woff2") format("woff2"),url("/assets/fonts/Lato-BoldItalic.woff") format("woff"),url("/assets/fonts/Lato-BoldItalic.ttf") format("truetype");font-style:italic;font-weight:bold;text-rendering:optimizeLegibility}@font-face{font-family:'Lato';src:url("/assets/fonts/Lato-Italic.eot");src:url("/assets/fonts/Lato-Italic.eot?#iefix") format("embedded-opentype"),url("/assets/fonts/Lato-Italic.woff2") format("woff2"),url("/assets/fonts/Lato-Italic.woff") format("woff"),url("/assets/fonts/Lato-Italic.ttf") format("truetype");font-style:italic;font-weight:normal;text-rendering:optimizeLegibility}@font-face{font-family:'IconFont';src:url("/assets/fonts/icons.eot");src:url("/assets/fonts/icons.eot?#iefix") format("embedded-opentype"),url("/assets/fonts/icons.woff2") format("woff2"),url("/assets/fonts/icons.woff") format("woff"),url("/assets/fonts/icons.ttf") format("truetype"),url("/assets/fonts/icons.svg#icons") format("svg");font-style:normal;font-weight:normal;font-variant:normal}
+@font-face{font-family:'Lato';src:url("/assets/fonts/Lato-Regular.eot");src:url("/assets/fonts/Lato-Regular.eot?#iefix") format("embedded-opentype"),url("/assets/fonts/Lato-Regular.woff2") format("woff2"),url("/assets/fonts/Lato-Regular.woff") format("woff"),url("/assets/fonts/Lato-Regular.ttf") format("truetype");font-style:normal;font-weight:normal;font-display:fallback;text-rendering:optimizeLegibility}@font-face{font-family:'Lato';src:url("/assets/fonts/Lato-Bold.eot");src:url("/assets/fonts/Lato-Bold.eot?#iefix") format("embedded-opentype"),url("/assets/fonts/Lato-Bold.woff2") format("woff2"),url("/assets/fonts/Lato-Bold.woff") format("woff"),url("/assets/fonts/Lato-Bold.ttf") format("truetype");font-style:normal;font-weight:bold;font-display:fallback;text-rendering:optimizeLegibility}@font-face{font-family:'Lato';src:url("/assets/fonts/Lato-BoldItalic.eot");src:url("/assets/fonts/Lato-BoldItalic.eot?#iefix") format("embedded-opentype"),url("/assets/fonts/Lato-BoldItalic.woff2") format("woff2"),url("/assets/fonts/Lato-BoldItalic.woff") format("woff"),url("/assets/fonts/Lato-BoldItalic.ttf") format("truetype");font-style:italic;font-weight:bold;font-display:fallback;text-rendering:optimizeLegibility}@font-face{font-family:'Lato';src:url("/assets/fonts/Lato-Italic.eot");src:url("/assets/fonts/Lato-Italic.eot?#iefix") format("embedded-opentype"),url("/assets/fonts/Lato-Italic.woff2") format("woff2"),url("/assets/fonts/Lato-Italic.woff") format("woff"),url("/assets/fonts/Lato-Italic.ttf") format("truetype");font-style:italic;font-weight:normal;font-display:fallback;text-rendering:optimizeLegibility}@font-face{font-family:'IconFont';src:url("/assets/fonts/icons.eot");src:url("/assets/fonts/icons.eot?#iefix") format("embedded-opentype"),url("/assets/fonts/icons.woff2") format("woff2"),url("/assets/fonts/icons.woff") format("woff"),url("/assets/fonts/icons.ttf") format("truetype"),url("/assets/fonts/icons.svg#icons") format("svg");font-style:normal;font-weight:normal;font-variant:normal;font-display:swap}

assets/css/fonts.sass

@@ -4,6 +4,7 @@
   src: url('/assets/fonts/Lato-Regular.eot?#iefix') format('embedded-opentype'), url('/assets/fonts/Lato-Regular.woff2') format('woff2'), url('/assets/fonts/Lato-Regular.woff') format('woff'), url('/assets/fonts/Lato-Regular.ttf') format('truetype')
   font-style: normal
   font-weight: normal
+  font-display: fallback
   text-rendering: optimizeLegibility
 
 @font-face
@@ -12,6 +13,7 @@
   src: url('/assets/fonts/Lato-Bold.eot?#iefix') format('embedded-opentype'), url('/assets/fonts/Lato-Bold.woff2') format('woff2'), url('/assets/fonts/Lato-Bold.woff') format('woff'), url('/assets/fonts/Lato-Bold.ttf') format('truetype')
   font-style: normal
   font-weight: bold
+  font-display: fallback
   text-rendering: optimizeLegibility
 
 @font-face
@@ -20,6 +22,7 @@
   src: url('/assets/fonts/Lato-BoldItalic.eot?#iefix') format('embedded-opentype'), url('/assets/fonts/Lato-BoldItalic.woff2') format('woff2'), url('/assets/fonts/Lato-BoldItalic.woff') format('woff'), url('/assets/fonts/Lato-BoldItalic.ttf') format('truetype')
   font-style: italic
   font-weight: bold
+  font-display: fallback
   text-rendering: optimizeLegibility
 
 @font-face
@@ -28,6 +31,7 @@
   src: url('/assets/fonts/Lato-Italic.eot?#iefix') format('embedded-opentype'), url('/assets/fonts/Lato-Italic.woff2') format('woff2'), url('/assets/fonts/Lato-Italic.woff') format('woff'), url('/assets/fonts/Lato-Italic.ttf') format('truetype')
   font-style: italic
   font-weight: normal
+  font-display: fallback
   text-rendering: optimizeLegibility
 
 @font-face
@@ -40,4 +44,5 @@
   url("/assets/fonts/icons.svg#icons") format('svg')
   font-style: normal
   font-weight: normal
-  font-variant: normal
\ No newline at end of file
+  font-variant: normal
+  font-display: swap
\ No newline at end of file