Cache control is not working in asp.net core 2.0 application

Question

I hosted a website over IIS 10 and added below section config file for cache for static contents.

<configuration>
  <system.webServer>
    <staticContent>
  <clientCache cacheControlMode="UseMaxAge" cacheControlMaxAge="7.00:00:00" cacheControlCustom="public" />
  </staticContent>...

and below is startup.cs file section

public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
    var options = new RewriteOptions()
   .AddRedirect("rent/(.*)", "/$1")
   .AddRedirect("explore/(.*)", "/$1"); 
    app.UseRewriter(options);
    app.UseMyMiddleware();

    loggerFactory.AddConsole(Configuration.GetSection("Logging"));
    loggerFactory.AddDebug();

    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
        app.UseBrowserLink();
    }
    else
    {
        app.UseExceptionHandler("/Home/Error");
    }
    app.UseStaticFiles();
    app.UseStaticFiles(new StaticFileOptions
    {
        OnPrepareResponse = ctx =>
        {
            const int durationInSeconds = 60 * 60 * 7;
            ctx.Context.Response.Headers[HeaderNames.CacheControl] =
                "public,max-age=" + durationInSeconds;
        }
    });
}

However it's not adding cache-control in response header for any static resource like images, js, css files.

Can anyone help me out? If some specific information is needed, please let me know, i'll update in question.

found the issue myself. I used app.UseStaticFiles();, empty one. — Jitendra Pancholi
– Jitendra Pancholi, Commented Mar 4, 2019 at 9:22
Please post that as an answer, so this question will move out of the unanswered queue. — Chris Pratt
– Chris Pratt, Commented Mar 4, 2019 at 13:58

Jitendra Pancholi · Accepted Answer · 2019-03-05 13:11:56Z

I was calling UseStaticFiles function twice. Commenting default one fixed the problem.

public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
    var options = new RewriteOptions()
   .AddRedirect("rent/(.*)", "/$1")
   .AddRedirect("explore/(.*)", "/$1"); 
    app.UseRewriter(options);
    app.UseMyMiddleware();

    loggerFactory.AddConsole(Configuration.GetSection("Logging"));
    loggerFactory.AddDebug();

    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
        app.UseBrowserLink();
    }
    else
    {
        app.UseExceptionHandler("/Home/Error");
    }
    //app.UseStaticFiles(); // commenting this fixed the issue.
    app.UseStaticFiles(new StaticFileOptions
    {
        OnPrepareResponse = ctx =>
        {
            const int durationInSeconds = 60 * 60 * 7;
            ctx.Context.Response.Headers[HeaderNames.CacheControl] =
                "public,max-age=" + durationInSeconds;
        }
    });
}

Collectives™ on Stack Overflow

Cache control is not working in asp.net core 2.0 application

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related