feat: add support for Netlify durable cache (#7)

* feat: add support for Netlify durable cache

* Add changeset

Author: ascorbic

.changeset/README.md

@@ -0,0 +1,8 @@
+# Changesets
+
+Hello and welcome! This folder has been automatically generated by `@changesets/cli`, a build tool that works
+with multi-package repos, or single-package repos to help you version and publish your code. You can
+find the full documentation for it [in our repository](https://github.com/changesets/changesets)
+
+We have a quick list of common questions to get you started engaging with this project in
+[our documentation](https://github.com/changesets/changesets/blob/main/docs/common-questions.md)

.changeset/config.json

@@ -0,0 +1,11 @@
+{
+  "$schema": "https://unpkg.com/@changesets/[email protected]/schema.json",
+  "changelog": "@changesets/cli/changelog",
+  "commit": false,
+  "fixed": [],
+  "linked": [],
+  "access": "restricted",
+  "baseBranch": "main",
+  "updateInternalDependencies": "patch",
+  "ignore": []
+}

.changeset/mighty-wombats-type.md

@@ -0,0 +1,5 @@
+---
+"cdn-cache-control": minor
+---
+
+Adds support for Netlify durable cache

netlify.test.js

@@ -10,7 +10,7 @@ describe("Netlify", () => {
     const headers = new CacheHeaders().swr();
     assert.strictEqual(
       headers.get("Netlify-CDN-Cache-Control"),
-      "public,s-maxage=0,tiered,stale-while-revalidate=604800",
+      "public,s-maxage=0,durable,stale-while-revalidate=604800",
     );
   });
 

src/index.ts

@@ -16,7 +16,7 @@ export const ONE_WEEK = 604800;
 export const ONE_YEAR = 31536000;
 
 // The tiered directive is used by Netlify to indicate that it should use a tiered cache, with a central cache shared by all edge nodes.
-const tieredDirective = "tiered";
+const tieredDirective = "durable";
 
 function detectCDN(): CDN | undefined {
   if (process.env.NETLIFY || process.env.NETLIFY_LOCAL) {