provides options to control caching for static assets

Oqtane.Client/Modules/Admin/SystemInfo/Index.razor

@@ -132,6 +132,12 @@
                     </select>
                 </div>
             </div>
+            <div class="row mb-1 align-items-center">
+                <Label Class="col-sm-3" For="cachecontrol" HelpText="Provide a Cache-Control directive for static assets. For example 'public, max-age=604800' indicates that static assets should be cached for 1 week. A blank value indicates no caching." ResourceKey="CacheControl">Static Asset Caching: </Label>
+                <div class="col-sm-9">
+                    <input id="cachecontrol" class="form-control" @bind="@_cachecontrol" />
+                </div>
+            </div>
             <div class="row mb-1 align-items-center">
                 <Label Class="col-sm-3" For="packageregistryurl" HelpText="Specify The Url Of The Package Manager Service For Installing Modules, Themes, And Translations. If This Field Is Blank It Means The Package Manager Service Is Disabled For This Installation." ResourceKey="PackageManager">Package Manager Url: </Label>
                 <div class="col-sm-9">
@@ -185,6 +191,7 @@
 	private string _logginglevel = string.Empty;
 	private string _notificationlevel = string.Empty;
 	private string _swagger = string.Empty;
+    private string _cachecontrol = string.Empty;
     private string _packageregistryurl = string.Empty;
     private string _packageregistryemail = string.Empty;
 
@@ -217,6 +224,7 @@
 			_logginglevel = systeminfo["Logging:LogLevel:Default"].ToString();
 			_notificationlevel = systeminfo["Logging:LogLevel:Notify"].ToString();
             _swagger = systeminfo["UseSwagger"].ToString();
+            _cachecontrol = systeminfo["CacheControl"].ToString();
             _packageregistryurl = systeminfo["PackageRegistryUrl"].ToString();
             _packageregistryemail = systeminfo["PackageRegistryEmail"].ToString();
         }
@@ -237,6 +245,7 @@
 			settings.Add("Logging:LogLevel:Default", _logginglevel);
 			settings.Add("Logging:LogLevel:Notify", _notificationlevel);
 			settings.Add("UseSwagger", _swagger);
+            settings.Add("CacheControl", _cachecontrol);
             settings.Add("PackageRegistryUrl", _packageregistryurl);
             settings.Add("PackageRegistryEmail", _packageregistryemail);
             await SystemService.UpdateSystemInfoAsync(settings);

Oqtane.Client/Resources/Modules/Admin/SystemInfo/Index.resx

@@ -300,4 +300,10 @@
   <data name="PackageManagerEmail.HelpText" xml:space="preserve">
     <value>Specify The Email Address Of The User Account Used For Interacting With The Package Manager Service. This Account Is Used For Managing Packages Across Multiple Installations.</value>
   </data>
+  <data name="CacheControl.Text" xml:space="preserve">
+    <value>Static Asset Caching:</value>
+  </data>
+  <data name="CacheControl.HelpText" xml:space="preserve">
+    <value>Provide a Cache-Control directive for static assets. For example 'public, max-age=604800' indicates that static assets should be cached for 1 week. A blank value indicates no caching.</value>
+  </data>
 </root>

Oqtane.Server/Controllers/SystemController.cs

@@ -53,6 +53,7 @@ namespace Oqtane.Controllers
                     systeminfo.Add("Logging:LogLevel:Default", _configManager.GetSetting("Logging:LogLevel:Default", "Information"));
                     systeminfo.Add("Logging:LogLevel:Notify", _configManager.GetSetting("Logging:LogLevel:Notify", "Error"));
                     systeminfo.Add("UseSwagger", _configManager.GetSetting("UseSwagger", "true"));
+                    systeminfo.Add("CacheControl", _configManager.GetSetting("CacheControl", "public, max-age=604800"));
                     systeminfo.Add("PackageRegistryUrl", _configManager.GetSetting("PackageRegistryUrl", Constants.PackageRegistryUrl));
                     systeminfo.Add("PackageRegistryEmail", _configManager.GetSetting("PackageRegistryEmail", ""));
                     break;

Oqtane.Server/Startup.cs

@@ -23,6 +23,7 @@ using OqtaneSSR.Extensions;
 using Microsoft.AspNetCore.Components.Authorization;
 using Oqtane.Providers;
 using Microsoft.AspNetCore.Cors.Infrastructure;
+using Microsoft.Net.Http.Headers;
 
 namespace Oqtane
 {
@@ -98,7 +99,7 @@ namespace Oqtane
             {
                 options.HeaderName = Constants.AntiForgeryTokenHeaderName;
                 options.Cookie.Name = Constants.AntiForgeryTokenCookieName;
-                options.Cookie.SameSite = SameSiteMode.Strict;
+                options.Cookie.SameSite = Microsoft.AspNetCore.Http.SameSiteMode.Strict;
                 options.Cookie.SecurePolicy = CookieSecurePolicy.SameAsRequest;
                 options.Cookie.HttpOnly = true;
             });
@@ -171,7 +172,7 @@ namespace Oqtane
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
-        public void Configure(IApplicationBuilder app, IWebHostEnvironment env, ISyncManager sync, ICorsService corsService, ICorsPolicyProvider corsPolicyProvider, ILogger<Startup> logger)
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env, ISyncManager sync, ICorsService corsService, ICorsPolicyProvider corsPolicyProvider, IConfigManager configManager, ILogger<Startup> logger)
         {
             if (!string.IsNullOrEmpty(_configureServicesErrors))
             {
@@ -205,7 +206,14 @@ namespace Oqtane
                 ServeUnknownFileTypes = true,
                 OnPrepareResponse = (ctx) =>
                 {
-                    ctx.Context.Response.Headers.Append("Cache-Control", "public, max-age=604800");
+                    if (!env.IsDevelopment())
+                    {
+                        var cachecontrol = configManager.GetSetting("CacheControl", "public, max-age=604800");
+                        if (!string.IsNullOrEmpty(cachecontrol))
+                        {
+                            ctx.Context.Response.Headers.Append(HeaderNames.CacheControl, cachecontrol);
+                        }
+                    }
                     var policy = corsPolicyProvider.GetPolicyAsync(ctx.Context, Constants.MauiCorsPolicy)
                         .ConfigureAwait(false).GetAwaiter().GetResult();
                     corsService.ApplyResult(corsService.EvaluatePolicy(ctx.Context, policy), ctx.Context.Response);