From d2678442c80cdd15ca7d14c013d31a7683de1ed6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Fi=C5=A1era?= <mara@neptuo.com>
Date: Wed, 16 Aug 2023 17:30:19 +0200
Subject: [PATCH] [browser] Use browser cache in WasmApp-style projects by
 default (#90662)

---
 src/mono/wasm/build/WasmApp.targets        | 2 ++
 src/tasks/WasmAppBuilder/WasmAppBuilder.cs | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/src/mono/wasm/build/WasmApp.targets b/src/mono/wasm/build/WasmApp.targets
index be1b7214e2c0b..bf01bec5d5625 100644
--- a/src/mono/wasm/build/WasmApp.targets
+++ b/src/mono/wasm/build/WasmApp.targets
@@ -152,6 +152,7 @@
     <WasmStripILAfterAOT Condition="'$(WasmStripILAfterAOT)' == ''">false</WasmStripILAfterAOT>
 
     <WasmRuntimeAssetsLocation Condition="'$(WasmRuntimeAssetsLocation)' == ''">_framework</WasmRuntimeAssetsLocation>
+    <BlazorCacheBootResources Condition="'$(BlazorCacheBootResources)' == ''">true</BlazorCacheBootResources>
   </PropertyGroup>
 
   <ItemGroup>
@@ -449,6 +450,7 @@
       WasmIncludeFullIcuData="$(WasmIncludeFullIcuData)"
       WasmIcuDataFileName="$(WasmIcuDataFileName)"
       RuntimeAssetsLocation="$(WasmRuntimeAssetsLocation)"
+      CacheBootResources="$(BlazorCacheBootResources)"
       >
       <Output TaskParameter="FileWrites" ItemName="FileWrites" />
     </WasmAppBuilder>
diff --git a/src/tasks/WasmAppBuilder/WasmAppBuilder.cs b/src/tasks/WasmAppBuilder/WasmAppBuilder.cs
index 9c7d8a6799134..869feb1277011 100644
--- a/src/tasks/WasmAppBuilder/WasmAppBuilder.cs
+++ b/src/tasks/WasmAppBuilder/WasmAppBuilder.cs
@@ -27,6 +27,7 @@ public class WasmAppBuilder : WasmAppBuilderBaseTask
     public bool WasmIncludeFullIcuData { get; set; }
     public string? WasmIcuDataFileName { get; set; }
     public string? RuntimeAssetsLocation { get; set; }
+    public bool CacheBootResources { get; set; }
 
     // <summary>
     // Extra json elements to add to _framework/blazor.boot.json
@@ -102,6 +103,9 @@ protected override bool ExecuteInternal()
             globalizationMode = GetGlobalizationMode().ToString().ToLowerInvariant()
         };
 
+        if (CacheBootResources)
+            bootConfig.cacheBootResources = CacheBootResources;
+
         // Create app
         var runtimeAssetsPath = !string.IsNullOrEmpty(RuntimeAssetsLocation)
             ? Path.Combine(AppDir, RuntimeAssetsLocation)