Lots of caching improvements

- Add Cache-Control to /__remix_manifest responses
- Don't call /__remix_data for routes that don't have data loaders
- Remove location-based browser data cache, use built-in caching instead
- Automatically reload the page when we detect the build has changed
- Add `useBeforeUnload` hook for saving state immediately before reload
- Add `json` and `redirect` helpers to `@remix-run/loader`

Fixes #3
Fixes #4
Fixes #7
Fixes #15

CHANGES.md

@@ -2,6 +2,24 @@
 
 This is a history of changes to [Remix](https://remix.run).
 
+## Unreleased
+
+## Features
+
+- Added Cache-Control to `/__remix_manifest` responses for better cacheability
+  ([#4](https://github.com/remix-run/remix/issues/4))
+- Remove location-based browser data cache, use built-in caching instead
+  ([#15](https://github.com/remix-run/remix/issues/15))
+- Automatically reload the page when we detect the build has changed
+  ([#7](https://github.com/remix-run/remix/issues/7))
+- Added `useBeforeUnload` hook for saving state immediately before reload
+- Added `json` and `redirect` helpers to `@remix-run/loader`
+
+## Bug Fixes
+
+- Don't call `/__remix_data` for routes that don't have data loaders
+  ([#3](https://github.com/remix-run/remix/issues/3))
+
 ## 0.4.0 - Thu Oct 15 2020
 
 ### Features

fixtures/gists-app/data/routes/gists.js

@@ -1,8 +1,17 @@
+const { json } = require("@remix-run/loader");
+
 module.exports = () => {
-  return {
-    users: [
-      { id: "ryanflorence", name: "Ryan Florence" },
-      { id: "mjackson", name: "Michael Jackson" }
-    ]
-  };
+  return json(
+    {
+      users: [
+        { id: "ryanflorence", name: "Ryan Florence" },
+        { id: "mjackson", name: "Michael Jackson" }
+      ]
+    },
+    {
+      headers: {
+        "Cache-Control": "public, max-age=60"
+      }
+    }
+  );
 };