optimise font (remove CASL axis) & fix caching

src/vfs/physical.rs

@@ -97,7 +97,7 @@ fn guess_content_type(extension: &str) -> Option<&'static str> {
         "html" => Some("text/html"),
         "js" => Some("text/javascript"),
         "css" => Some("text/css"),
-        "woff" => Some("font/woff2"),
+        "woff2" => Some("font/woff2"),
         "svg" => Some("image/svg+xml"),
         "atom" => Some("application/atom+xml"),
         "png" => Some("image/png"),

static/css/noncritical.css

@@ -141,7 +141,6 @@ input {
     font-weight: 450;
     font-style: normal;
     --recursive-mono: 0;
-    --recursive-casl: 0;
     --recursive-crsv: 0.5;
 }
 
@@ -150,9 +149,7 @@ input {
 *:after {
     font-variation-settings:
         "MONO" var(--recursive-mono),
-        "CASL" var(--recursive-casl),
         "CRSV" var(--recursive-crsv);
-
     font-feature-settings: "ss03", "ss04", "ss05", "ss06", "ss08";
 }
 

static/css/page/tairu.css

@@ -110,7 +110,6 @@
     & .directions-square {
         font-weight: 900;
         font-style: normal;
-        --recursive-casl: 0;
         --recursive-mono: 1;
         color: #d3dce9;
         text-shadow:

static/font/README.txt

@@ -0,0 +1,6 @@
+To produce recursive-casl0.woff2:
+
+    fonttools varLib.instancer Recursive_VF_1.085.woff2 -o recursive-casl0.woff2 CASL=0
+
+Further optimisations can be done to the font, but removing the CASL axis makes the biggest difference.
+It is not used anywhere on the website anyways, and saves about half the download size of the font.

template/components/_head.hbs

@@ -7,7 +7,7 @@
 <style>
     @font-face {
         font-family: "RecVar";
-        src: url("{{{ asset 'font/Recursive_VF_1.085.woff2' }}}");
+        src: url("{{{ asset 'font/recursive-casl0.woff2' }}}");
     }
 </style>
 <link rel="stylesheet" href="{{ asset 'css/base.css' }}">